The theory and practice of hell :
the German concentration camps and the system behind them /
Translated from the German by Heinz Norden.

APA Citation

Kogon, E. (1958). The theory and practice of hell: the German concentration camps and the system behind them. [New York]: Berkeley Pub. Corp..

MLA Citation

Kogon, Eugen, 1903-. The Theory And Practice of Hell: the German Concentration Camps And the System Behind Them. [New York]: Berkeley Pub. Corp., 1958.

Warning: These citations may not always be complete (especially for serials).