Lists of ISO 639 codes

Lists of ISO 639 codes are:
 * List of ISO 639-1 codes, with corresponding ISO 639-4 and ISO 639-5 codes somalia
 * List of ISO 639-1 codes, with corresponding ISO 639-2 and ISO 639-3 codes
 * List of ISO 639-2 codes, with corresponding ISO 639-1 codes
 * List of ISO 639-3 codes, with corresponding ISO 639-1 and ISO 639-2 codes
 * List of ISO 639-3 macrolanguages, with corresponding ISO 639-1 and ISO 639-2 codes
 * List of ISO 639-5 codes, with markers for corresponding ISO 639-2 codes