Landau, H. (1937). The enemy within: The inside story of German sabotage in America. G.P. Putnam's sons.
芝加哥风格引文Landau, Henry. The Enemy Within: The Inside Story of German Sabotage in America. [New York]: G.P. Putnam's sons, 1937.
MLA引文Landau, Henry. The Enemy Within: The Inside Story of German Sabotage in America. G.P. Putnam's sons, 1937.
警告：这些引文格式不一定是100％准确.