APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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