APA (7th ed.) Citation

Ross, E. A. (1938). Principles of sociology (3d ed.). Appleton-Century Crofts, inc..

Chicago Style (17th ed.) Citation

Ross, Edward Alsworth. Principles of Sociology. 3d ed. New York: Appleton-Century Crofts, inc., 1938.

MLA (9th ed.) Citation

Ross, Edward Alsworth. Principles of Sociology. 3d ed. Appleton-Century Crofts, inc., 1938.