Description of Microforms

1
Description of Microforms
2
IDENTIFICATION OF THE KIND OF MICROFORM

• Microforms usually fall into one of these kinds
• microfilm
• microfiche
• microopaque (also known as microprint) (less
  common)

3
Microforms

• The Library of Congress follows Anglo-American
  Cataloguing Rules, first edition (AACR1) for
  descriptions of electronic, microform and "on
  demand" photocopy reproductions of previously
  existing materials. The principles of AACR1,
  described in LCRIs for AACR2, chapter 11, state
  that you should base the bibliographic
  description on the original publication and place
  data relating to the reproduction in a secondary
  position.

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Microforms

• The treatment of an item that is published as a
  microform edition differs from that of a
  microform issued as a reproduction of previously
  published material. 
• Items that are microform publications of
  materials prepared or assembled specifically for
  bringing out an original edition in microform are
  cataloged according to chapter 11 of AACR2r.
• Items that are microform reproductions of
  previously published materials, including
  microform copies of dissertations, are cataloged
  according to chapter 11 of LCRI. 
• Bibliographic information on a record for a
  microform reproduction must reflect the original
  publication in these areas fixed field (except
  the Form element), title, statement of
  responsibility, edition, publication information,
  physical description, and series.  

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Chief source

• Chief source Title frame or title card
• When a title card is lacking, eye-readable
  information on the top of cards may be used
• If a title appears in abbreviated form on the
  microform while the full title appears on the
  container or is available in accompanying
  materials, the container or accompanying
  materials may be used as the chief source

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245 Title Statement 

• Use subfield h with the appropriate GMD,
  microform, immediately following the subfield
  a
• a Ecce homo h microform b how one becomes
  what one is / c Friedrich Nietzsche. 

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260 Publication, Distribution, Etc.

• When a microform is a reproduction of previously
  published material, the information in this field
  should reflect that of the original edition.  The
  533 field will contain the details of the
  publication of the reproduced material

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300 Physical Description 

• When the microform is an edition issued in
  microform, code the 300 to represent the item in
  hand.  For a microform that is a reproduction of
  previously published material, code the 300 to
  the original edition. 
• Microform edition 
• 300     a 2 microfilm reels b ill. c 35
  mm.
• Previously published material now issued in
  microform  
• 300     a 756 p. b ill. c 28 cm. 

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533 Reproduction Note 

• This field is mandatory when cataloging a
  microform that is issued as a reproduction of
  previously published material.  Do not use the
  533 field when cataloging an edition issued in
  microform. 
• subfield atype of reproduction
• subfield bplace of reproduction
• subfield cagency responsible for reproduction
• subfield ddate of reproduction
• subfield ephysical description of reproduction
• subfield fseries statement of reproduction (if
  applicable) 

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533 Reproduction Note 

• 533     a Microfilm. b Ann Arbor, Mich. c
  UMI Reprints on Demand, d 1991. e 2 microfilm
  reels 35 mm.  
• 533     a Microfiche. b Needham, Mass. c
  Omnisys, d 1998. e 2 microfiches. f (French
  Revolutionary pamphlets on microfiche no.
  8856) 

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Fixed Field and 007

• Fixed Field Form
• a (microfilm)
• b (microfiche)
•  c (microopaque
• 007 Physical Description Fixed Field (R)
•  a h b d /or e d a / or b e f / or m ... f
  a--- /or b--- etc. g b / or c or m h a / or
  b... i a / or b... j a / or u...
• b d (for microfilm) e (for microfiche)
• d a (positive) b (negative)
• f Reduction ratio use four character positions
  (see Bib. Standard and Format for details)
• g b (monochrome) c (color) m (combination of
  color and monochrome)...
• h a (silver halide) b (diazole) c
  (Vesicular)...
• i  a (first generation master) b (printing
  master) c (Service copy)...
• j  a (safety base) u (unknown)...

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Guides

• Microform that is issued with an accompanying
  guide should be cataloged on the same
  bibliographic record.  If a guide is published at
  a later date, has a different title and is not
  issued by the same body, catalog it on a separate
  bibliographic record. 
• 300     a 8 microform reels c 35 mm. e
  guide (xiv, 56 p. ill. 28 cm.) 
• 500 a Accompanied by a printed guide, entitled
  Guide to records of the U.S. Department of State
  relating to internal affairs of Czechoslovakia,
  1955-1959.  

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Linking

• LC links bibliographic records for microform
  reproductions of monographs to records for the
  corresponding hardcopy originals.
• LC adds field 776 to records representing
  microform reproductions. Field 776 consists of
  subfield c with "Original" and subfield w with
  the National Union Catalog symbol in parentheses
  followed by the control number of the record for
  the hardcopy original.
• 7761c Original w (DLC)   20000001
• The preceding example shows a link for a
  microform reproduction of The Toll of the Sands,
  LCCN 20-1. Do not use a similar linking field on
  the record for the hardcopy original to connect
  it with its microform reproductions.