APA (7th ed.) Zitazioa

McDonnell, K. (1968). Enquiring into the earth. Longmans.

Chicago Style (17th ed.) Zitazioa

McDonnell, K.S. Enquiring into the Earth. Melbourne: Longmans, 1968.

MLA (9th ed.) Zitazioa

McDonnell, K.S. Enquiring into the Earth. Longmans, 1968.