MLA

Basseches, Nikolaus, and Marion Saerchinger. The Unknown Army : the Nature and History of the Russian Military Forces. New York: The Viking Press, 1943.

APA

Basseches, N., & Saerchinger, M. (1943). The unknown army : the nature and history of the Russian military forces. New York: The Viking Press.

Chicago

Basseches, Nikolaus, and Marion Saerchinger. The Unknown Army: The Nature and History of the Russian Military Forces. New York: The Viking Press,, 1943.