APA (7th ed.) Citation

Kaufmann, J. E., & Kaufmann, H. W. (2006). Fortress France: The Maginot Line and French defenses in World War II. Praeger Security International.

Chicago Style (17th ed.) Citation

Kaufmann, J. E., and H. W. Kaufmann. Fortress France: The Maginot Line and French Defenses in World War II. Westport, Conn: Praeger Security International, 2006.

MLA (9th ed.) Citation

Kaufmann, J. E., and H. W. Kaufmann. Fortress France: The Maginot Line and French Defenses in World War II. Praeger Security International, 2006.