Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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