APA Citation

(1981). Reference manual for machine-readable bibliographic descriptions (2. edición rev. --.). Paris: General Information Programme and UNISIST, UNESCO.

Chicago Style Citation

Reference Manual for Machine-readable Bibliographic Descriptions. 2. edición rev. --. Paris: General Information Programme and UNISIST, UNESCO, 1981.

MLA Citation

Reference Manual for Machine-readable Bibliographic Descriptions. 2. edición rev. --. Paris: General Information Programme and UNISIST, UNESCO, 1981.

Warning: These citations may not always be 100% accurate.