APA (7th ed.) Zitazioa

Maboganja, A. (1997). The State of the earth: Contemporary. Block Well.

Chicago Style (17th ed.) Zitazioa

Maboganja, Akin. The State of the Earth: Contemporary. New York: Block Well, 1997.

MLA (9th ed.) Zitazioa

Maboganja, Akin. The State of the Earth: Contemporary. Block Well, 1997.