APA (7th ed.) Citation

Stovall, J. W., & Brown, H. E. (1955). The principles of historical geology. Ginn.

Chicago Style (17th ed.) Citation

Stovall, John Willis, and Howard Elmer Brown. The Principles of Historical Geology. Boston: Ginn, 1955.

MLA (9th ed.) Citation

Stovall, John Willis, and Howard Elmer Brown. The Principles of Historical Geology. Ginn, 1955.