APA (7th ed.) Citation
Biskupski, M. B. (2015). The most dangerous German agent in America: The many lives of Louis N. Hammerling. NIU Press.
Chicago Style (17th ed.) Citation
Biskupski, Mieczysław B. The Most Dangerous German Agent in America: The Many Lives of Louis N. Hammerling. De Kalb, Illinois: NIU Press, 2015.
MLA (9th ed.) Citation
Biskupski, Mieczysław B. The Most Dangerous German Agent in America: The Many Lives of Louis N. Hammerling. NIU Press, 2015.
Warning: These citations may not always be 100% accurate.