APA (7th ed.) Citation

Hillgruber, A., & Kirby, W. C. (1981). Germany and the two World Wars. Harvard Univ. Pr.

Chicago Style (17th ed.) Citation

Hillgruber, Andreas, and William C. Kirby. Germany and the Two World Wars. Cambridge, Mass. [[u.a.]: Harvard Univ. Pr, 1981.

MLA (8th ed.) Citation

Hillgruber, Andreas, and William C. Kirby. Germany and the Two World Wars. Harvard Univ. Pr, 1981.