Cita APA

Gellately, R. (2007). Lenin, Stalin, and Hitler: The age of social catastrophe. Knopf.

Citación estilo Chicago

Gellately, Robert. Lenin, Stalin, and Hitler: The Age of Social Catastrophe. New York: Knopf, 2007.

Cita MLA

Gellately, Robert. Lenin, Stalin, and Hitler: The Age of Social Catastrophe. Knopf, 2007.