Παραπομπή APA

Walter, S. (2008). Minerals of the world (2nd ed.). Sterling Publishers (P) Ltd.

Παραπομπή Chicago Style

Walter, Schumann. Minerals of the World. 2nd ed. New York: Sterling Publishers (P) Ltd, 2008.

Παραπομπή MLA

Walter, Schumann. Minerals of the World. 2nd ed. Sterling Publishers (P) Ltd, 2008.