APA (7th ed.) Citation

Sumner, W. G. (1952). What social classes owe to each other. Caxton Printers.

Chicago Style (17th ed.) Citation

Sumner, William Graham. What Social Classes Owe to Each Other. Caldwell, Idaho: Caxton Printers, 1952.

MLA (9th ed.) Citation

Sumner, William Graham. What Social Classes Owe to Each Other. Caxton Printers, 1952.

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