APA (7th ed.) Zitazioa

Skinner,Brain J. (1969). Earths History, Stucture and Materials (10th ed.). WILLIAM KAUFMANN.

Chicago Style (17th ed.) Zitazioa

Skinner,Brain J. Earths History, Stucture and Materials. 10th ed. California: WILLIAM KAUFMANN, 1969.

MLA (9th ed.) Zitazioa

Skinner,Brain J. Earths History, Stucture and Materials. 10th ed. WILLIAM KAUFMANN, 1969.

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