APA (7th ed.) Citation

Clubb, O. E. (1972). 20th century China (2nd ed.). Columbia University Press.

Chicago Style (17th ed.) Citation

Clubb, Oliver Edmund. 20th Century China. 2nd ed. New York: Columbia University Press, 1972.

MLA (9th ed.) Citation

Clubb, Oliver Edmund. 20th Century China. 2nd ed. Columbia University Press, 1972.