APA (7th ed.) Citation

Ross, E. A. (1938). Principles of sociology (3rd ed.). Appleton.

Chicago Style (17th ed.) Citation

Ross, Edward Alsworth. Principles of Sociology. 3rd ed. N.Y.: Appleton, 1938.

MLA (8th ed.) Citation

Ross, Edward Alsworth. Principles of Sociology. 3rd ed. Appleton, 1938.

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