APA-ийн эшлэл(7 дахь хэвлэлт)

Biskupski, M. B. (2015). The most dangerous German agent in America: The many lives of Louis N. Hammerling. NIU Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Biskupski, Mieczysław B. The Most Dangerous German Agent in America: The Many Lives of Louis N. Hammerling. De Kalb, Illinois: NIU Press, 2015.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Biskupski, Mieczysław B. The Most Dangerous German Agent in America: The Many Lives of Louis N. Hammerling. NIU Press, 2015.