The following pages link to optional (Q20):
Displayed 50 items.
- 005 Version identifier (Q3) (← links)
- 010 International Standard Book Number (ISBN) (Q4) (← links)
- 003 Persistent record identifier (Q5) (← links)
- 011 International Standard Serial Number (ISSN) (Q6) (← links)
- 012 Fingerprint identifier (Q7) (← links)
- 013 International Standard Music Number (ISMN) (Q8) (← links)
- 014 Article identifier (Q9) (← links)
- 015 International Standard Technical Report Number (ISRN) (Q10) (← links)
- 016 International Standard Recording Code (ISRC) (Q13) (← links)
- 017 Other identifier (Q14) (← links)
- 020 National bibliography number (Q15) (← links)
- 021 Legal deposit number (Q16) (← links)
- 022 Government publication number (Q17) (← links)
- 033 Other system persistent record identifier (Q23) (← links)
- 035 Other system identifiers (Q24) (← links)
- 036 Music incipit (Q25) (← links)
- 040 CODEN (Q26) (← links)
- 071 Publisher's number (Q27) (← links)
- 072 Universal product code (Q28) (← links)
- 073 International article number (Q29) (← links)
- 102 Country of publication or production (Q32) (← links)
- 105 Coded Data Field: Textual Language Material, Monographic (Q33) (← links)
- 106 Coded Data Field: Textual Resource - Form (Q34) (← links)
- 110 Coded Data Field: Continuing Resources (Q35) (← links)
- 300 General notes (Q36) (← links)
- 301 Notes pertaining to identification numbers (Q37) (← links)
- 302 Notes pertaining to coded information (Q38) (← links)
- 303 General notes pertaining to descriptive information (Q39) (← links)
- 305 Notes pertaining to edition and bibliographic history (Q41) (← links)
- 306 Notes pertaining to publication, distribution, etc. (Q42) (← links)
- 307 Notes pertaining to physical description (Q43) (← links)
- 308 Notes pertaining to series (Q45) (← links)
- 310 Notes pertaining to binding and availability (Q46) (← links)
- 311 Notes pertaining to linking fields (Q47) (← links)
- 312 Notes pertaining to related titles (Q48) (← links)
- 313 Notes pertaining to subject access (Q49) (← links)
- 314 Notes pertaining to responsibility (Q50) (← links)
- 315 Notes pertaining to material (or type of publication) specific information (Q51) (← links)
- 316 Note relating to the item (Q52) (← links)
- 317 Provenance note (Q53) (← links)
- 318 Action Note (Q54) (← links)
- 320 Internal bibliographies/indexes note (Q55) (← links)
- 321 External indexes/abstracts/references Note (Q56) (← links)
- 322 Credits Note (Q57) (← links)
- 323 Cast note (projected and video material and sound recordings) (Q58) (← links)
- 324 Original version note (Q59) (← links)
- 325 Reproduction note (Q60) (← links)
- 326 Frequency statement Note (Continuing resources) (Q61) (← links)
- 327 Contents Note (Q62) (← links)
- 328 Dissertation (Thesis) Note (Q63) (← links)