1a. Microfilm Reproductions (Purchased): Fixed Fields

Fixed Fields

Enter values for the original monograph or serial according to the MARC 21 Bibliographic Format. In addition, enter values for the microform following these guidelines:

Basic guidelines (see the MARC 21 Bibliographic Format for more detail).


Label Code Notes
Type of Material a Language material
Bibliographic Level m or s Monograph or Serial
Encoding Level 1 Full level, Material Not Examined
ISBD punctuation blank or i Use "i" for ISBD punctuation; blank if pre-ISBD. If the Leader for the original source uses "a" change to "i"


Label Code Notes
Publication status s or m Use code for the date of the original
Dates 1-2   Use date or dates of the original; enter reprint date in 533
Form of Item a Microfilm
Cataloging Source d Other. Do not use c (Cooperative Cataloging)


Select the Microform tab

Label Code Definition
Specific Material Designation d Microfilm reel
Original vs Reproduction   Ignore. (If a value has been entered for derived copy cataloging, leave value as is.)
Positive/Negative Aspect a Positive
  b Negative
Dimensions f 35 mm
  d 16 mm
Reduction Ratio Range   "Generally, the specific reduction ratio is recorded when it is ultra high (code e in 007/05). If the ratio is not ultra high, recording the specific ratio is less essential. The numeric value of the reduction ratio, using three digits, is right justified with leading zeros (e.g., 015, 048). A hyphen is used for unknown digits in the reduction ratio (e.g., 03-, 1--, or ---). Three fill character (|||) are used when no attempt has been made to code this data element."--MARC 21. If the reduction ratio is not explicit, use range code u and hyphens rather than |||
  a Low (less than 016)
  b Normal (016-030)
  c High (031-060)
  d Very High (061-090)
  e Ultra High (over 090)
  u Unknown
Color (selected codes) b Black and White
  c Multicolored
  m Mixed
Emulsion on film a Silver Halide (use as the default value)
  u Unknown
Generation c Service Copy
Base a Safety Base (use for pre-1980 production)
  p Safety Base, polyester (use for post-1980 production)