APA (7th ed.) Citation

Pares, S. B. (1944). A history of Russia (Rev. ed.). Knopf.

Chicago Style (17th ed.) Citation

Pares, Sir Bernard. A History of Russia. Rev. ed. New York: Knopf, 1944.

MLA (9th ed.) Citation

Pares, Sir Bernard. A History of Russia. Rev. ed. Knopf, 1944.