APA (7th ed.) Citation

Weinschenk, E., & Johannsen, A. (1916). The fundamental principles of petrology. McGraw-Hill book Co.; [etc., etc.].

Chicago Style (17th ed.) Citation

Weinschenk, Ernst, and Albert Johannsen. The Fundamental Principles of Petrology. New York: McGraw-Hill book Co.; [etc., etc.], 1916.

MLA (9th ed.) Citation

Weinschenk, Ernst, and Albert Johannsen. The Fundamental Principles of Petrology. McGraw-Hill book Co.; [etc., etc.], 1916.