APA (7th ed.) Citation

Barnes, H. E. (1961). An introduction to the history of sociology. University.

Chicago Style (17th ed.) Citation

Barnes, Harry Elmer. An Introduction to the History of Sociology. Chicago: University, 1961.

MLA (9th ed.) Citation

Barnes, Harry Elmer. An Introduction to the History of Sociology. University, 1961.

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