APA (7th ed.) Citation

Union of International Associations. (1969). Directory of periodicals published by international organizations (Third edition.).

Chicago Style (17th ed.) Citation

Union of International Associations. Directory of Periodicals Published by International Organizations. Third edition. Brussels, 1969.

MLA (9th ed.) Citation

Union of International Associations. Directory of Periodicals Published by International Organizations. Third edition. 1969.

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