APA (7th ed.) Citation

Hayes, E. C. (1920). Introduction to the study of sociology. D. Appleton.

Chicago Style (17th ed.) Citation

Hayes, Edward C. Introduction to the Study of Sociology. New York: D. Appleton, 1920.

MLA (8th ed.) Citation

Hayes, Edward C. Introduction to the Study of Sociology. D. Appleton, 1920.

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