APA (7th ed.) Citation
Union of International Associations. Yearbook of International Organizations 1981 (19.). Union of International Associations.
Chicago Style (17th ed.) Citation
Union of International Associations. Yearbook of International Organizations 1981. 19. Bruselas: Union of International Associations.
MLA (9th ed.) Citation
Union of International Associations. Yearbook of International Organizations 1981. 19. Union of International Associations.
Warning: These citations may not always be 100% accurate.