- 1. IETF RFC 1766
- [Language identifiers as defined by IETF RFC 1766: Tags for the Identification of Languages, or its successor on the IETF Standards Track. The biblio ref for RFC 1766 is: IETF (Internet Engineering Task Force), RFC 1766: Tag ( HL7V3.0 )] (UMLS (HL7) C1553867) =Intellectual Product =CodeSystem;
| |