APA (7th ed.) Zitazioa

Morales, G. A. (1978). Historical geology laboratory manual (3rd ed.). Burgess Pub. Co.

Chicago Style (17th ed.) Zitazioa

Morales, Gustavo A. Historical Geology Laboratory Manual. 3rd ed. Minneapolis, Minn: Burgess Pub. Co, 1978.

MLA (9th ed.) Zitazioa

Morales, Gustavo A. Historical Geology Laboratory Manual. 3rd ed. Burgess Pub. Co, 1978.