APA (7th ed.) Citation

Koehler, J. O. (1999). Stasi: The untold story of East German secret police. Westview Press.

Chicago Style (17th ed.) Citation

Koehler, John O. Stasi: The Untold Story of East German Secret Police. Boulder, Colo. [u.a.]: Westview Press, 1999.

MLA (8th ed.) Citation

Koehler, John O. Stasi: The Untold Story of East German Secret Police. Westview Press, 1999.