APA (7th ed.) Zitazioa

CLARK, G. Prehistoric socities. Penguin Books.

Chicago Style (17th ed.) Zitazioa

CLARK, Grahame. Prehistoric Socities. London: Penguin Books.

MLA (9th ed.) Zitazioa

CLARK, Grahame. Prehistoric Socities. Penguin Books.