APA (7th ed.) Citation

(1980). Directory of United Nations information systems. Vol. 1. IOB.

Chicago Style (17th ed.) Citation

Directory of United Nations Information Systems. Vol. 1. Geneva: IOB, 1980.

MLA (9th ed.) Citation

Directory of United Nations Information Systems. Vol. 1. IOB, 1980.

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