APA (7th ed.) Citation

(1970). Guide to national bibliographical information centres (3rd ed.). Unesco.

Chicago Style (17th ed.) Citation

Guide to National Bibliographical Information Centres. 3rd ed. Paris: Unesco, 1970.

MLA (9th ed.) Citation

Guide to National Bibliographical Information Centres. 3rd ed. Unesco, 1970.

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