APA (7th ed.) Citation

Beaumont, R. A. (1957). Introduction to modern theory. Ronehart & company, inc.

Chicago Style (17th ed.) Citation

Beaumont, Ross A. Introduction to Modern Theory. New York: Ronehart & company, inc, 1957.

MLA (8th ed.) Citation

Beaumont, Ross A. Introduction to Modern Theory. Ronehart & company, inc, 1957.

Warning: These citations may not always be 100% accurate.