APA (7th ed.) Citation

Sontag, R. J. (1933). European diplomatic history, 1871-1932. Appleton-Century-Crofts.

Chicago Style (17th ed.) Citation

Sontag, Raymond James. European Diplomatic History, 1871-1932. New York: Appleton-Century-Crofts, 1933.

MLA (9th ed.) Citation

Sontag, Raymond James. European Diplomatic History, 1871-1932. Appleton-Century-Crofts, 1933.

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