- Codes for the Representation of the Names of Languages - Documents the essential information from ISO 639, Codes for the Representation of the Names of Languages.
- ISO 639 - Codes for the Representation of the Names of Languages. A useful list.
- ISO 639 - Code for the representation of names of languages.
- ISO 639-1 and ISO 639-2: International Standards for Language Codes. ISO 15924: International Standard for names of scripts - 65th IFLA Council and General Conference - Conference Programme and Proceedings - An overview and history of the standard.
- ISO 639-2 Codes for languages - Library of Congress document contains the ISO 639-2 Alpha-3 and Alpha-2 codes for languages.
