Code for the Representation of the Names of Languages. From ISO 639, revised 1989. ISO 639. Code for the representation of the names of languages. [2001-08-29] Note: See now the updated document "Language Identifiers in the Markup Context." Note. See also related materials: NISO 3-character language codes (Z39.53-1994) [unofficial] Bibliography entry for ISO 639:1988 (E/F). Code for the Representa