* [https://www.loc.gov/aba/pcc/naco/670faq.html FAQ on the 670 (Source Data Found) Field in Name Authority Records (NARs) for NACO]<br><small>''Original English version last updated: 2017-09-08''</small> | * [https://www.loc.gov/aba/pcc/naco/670faq.html FAQ on the 670 (Source Data Found) Field in Name Authority Records (NARs) for NACO]<br><small>''Original English version last updated: 2017-09-08''</small> |