APA (7th ed.) Citation

Sumner, W. G. (1883). What social classes owe to each other. Harper & Bros..

Chicago Style (17th ed.) Citation

Sumner, William Graham. What Social Classes Owe to Each Other. New York: Harper & Bros., 1883.

MLA (9th ed.) Citation

Sumner, William Graham. What Social Classes Owe to Each Other. Harper & Bros., 1883.

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