APA (7th ed.) Citation

Não informado. (1969). Yearbook of international congress proceedings. Union of International Associations.

Chicago Style (17th ed.) Citation

Não informado. Yearbook of International Congress Proceedings. Brussels: Union of International Associations, 1969.

MLA (8th ed.) Citation

Não informado. Yearbook of International Congress Proceedings. Union of International Associations, 1969.

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