APA (7th ed.) Zitazioa

Avicenne, P. (1972). Bibliographical services throught the: World. Unesco.

Chicago Style (17th ed.) Zitazioa

Avicenne, Paul. Bibliographical Services Throught the: World. Paris: Unesco, 1972.

MLA (9th ed.) Zitazioa

Avicenne, Paul. Bibliographical Services Throught the: World. Unesco, 1972.