Snyder, T. (2012). Hitler vs. Stalin: Who was worse? / Snyder, Timothy. IWM-Post.
Cita Chicago (17th ed.)Snyder, Timothy. "Hitler Vs. Stalin: Who Was Worse? / Snyder, Timothy." IWM-Post 2012.
Cita MLA (8th ed.)Snyder, Timothy. "Hitler Vs. Stalin: Who Was Worse? / Snyder, Timothy." IWM-Post, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.