APA (7th ed.) Citation

Heiden, K., Kérő, P., & Dru, A. (1937). Hitler. Eugen Prager.

Chicago Style (17th ed.) Citation

Heiden, Konrad, Pál Kérő, and André Dru. Hitler. Bratislava: Eugen Prager, 1937.

MLA (9th ed.) Citation

Heiden, Konrad, et al. Hitler. Eugen Prager, 1937.

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