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| Chronology | Definition | Examples MARC | Examples 'non-standard' | Examples 'non-MARC' | Comments |
|---|---|---|---|---|---|
| Z39.71 | Data element in the Extent of Holdings Area that indicates the date(s) used by the publisher on a serial unit or multipart unit to help identify it and/or indicate when it was issued. Note: The chronology may reflect the date of coverage, publication, copyright, or printing. | ||||
| Duke | |||||
| TAMU | |||||
| uChicago | See above |