Your United Nations :
the official guide book.
APA Citation
United Nations. Office of Public Information. (1961). Your United Nations: the official guide book. 11th ed. New York: United Nations Office of Public Information.
MLA Citation
United Nations. Office of Public Information. Your United Nations: the Official Guide Book. 11th ed. New York: United Nations Office of Public Information, 1961.
Warning: These citations may not always be complete (especially for serials).