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).
Leader
| 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" |
008
| 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) |
007
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) |