Biskupski, M. B. (2015). The most dangerous German agent in America: The many lives of Louis N. Hammerling. NIU Press.
芝加哥风格引文Biskupski, Mieczysław B. The Most Dangerous German Agent in America: The Many Lives of Louis N. Hammerling. De Kalb, Illinois: NIU Press, 2015.
MLA引文Biskupski, Mieczysław B. The Most Dangerous German Agent in America: The Many Lives of Louis N. Hammerling. NIU Press, 2015.
警告：这些引文格式不一定是100％准确.