APA (7th ed.) Zitazioa

Meyer, W. B. (1996). Human impact on the earth. Univ. Pr.

Chicago Style (17th ed.) Zitazioa

Meyer, William B. Human Impact on the Earth. Cambridge: Univ. Pr, 1996.

MLA (9th ed.) Zitazioa

Meyer, William B. Human Impact on the Earth. Univ. Pr, 1996.