Style de citation APA (7e éd.)

Canton, H., & Holman, C. A. (2001). The Europa directory of international organizations 2001 (3rd ed.). Europa Publications.

Style de citation Chicago (17e éd.)

Canton, Helen, et Catriona Appeatu Holman. The Europa Directory of International Organizations 2001. 3rd ed. London: Europa Publications, 2001.

Style de citation MLA (9e éd.)

Canton, Helen, et Catriona Appeatu Holman. The Europa Directory of International Organizations 2001. 3rd ed. Europa Publications, 2001.