Canton, H., & Holman, C. A. (2001). The Europa directory of international organizations 2001 (3rd ed.). Europa Publications.
Lua i Stíl Chicago (17ú heag.)Canton, Helen, agus Catriona Appeatu Holman. The Europa Directory of International Organizations 2001. 3rd ed. London: Europa Publications, 2001.
Lua MLA (9ú heag.)Canton, Helen, agus Catriona Appeatu Holman. The Europa Directory of International Organizations 2001. 3rd ed. Europa Publications, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.