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This document records the recommended interim practice when giving the information in authority records. The information will be updated as 'best practice' ‘best practice’ decisions are adopted by the PCC and changes to the MARC 21 Format for Authority Date are implemented. LC/PCC will use the authority format when creating records for works and expressions.
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RDA dates in EDTF date scheme (provide 'edtf' ‘edtf’ in 046 $2) | ||
Category | RDA presentation | EDTF coding in 046 |
Probable date | 1816? | 1816? |
Approximate date | Approximately 931 | 0931~ <ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="32320ec9-e500-4538-83ff-3cbbf5f50e85"><ac:plain-text-body><![CDATA[ |
Known to be one of two years | 1666 or 1667 | [1666,1667] ]] ></ac:plain-text-body></ac:structured-macro> |