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EDTF Date - 046 - RDACataloging Examples

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When supplying dates in field 046, use the Extended Date Time Format (EDTF) schema in all cases except for centuries; supply dates using the pattern yyyy, yyyy-mm, or yyyy-mm-dd; always add subfield $2 edtf except after a century. The more consistent use of $2 edtf is based on a PCCLIST discussion suggestion to simplify the use of $2 (always use except for centuries). Visit above RDA Blog link to read complete article.