APA (7th ed.) Citation

Chotjewitz, P. O. (1981). The thirty years peace (1st American ed.). Knopf.

Chicago Style (17th ed.) Citation

Chotjewitz, Peter O. The Thirty Years Peace. 1st American ed. New York, N.Y.: Knopf, 1981.

MLA (9th ed.) Citation

Chotjewitz, Peter O. The Thirty Years Peace. 1st American ed. Knopf, 1981.