APA (7th ed.) Zitazioa

Morales, G. A. (1978). Historical geology laboratory manual. Burgess Pub. Co.

Chicago Style (17th ed.) Zitazioa

Morales, Gustavo A. Historical Geology Laboratory Manual. Minneapolis, Minn: Burgess Pub. Co, 1978.

MLA (9th ed.) Zitazioa

Morales, Gustavo A. Historical Geology Laboratory Manual. Burgess Pub. Co, 1978.