APA (7th ed.) Citation

Stiller. (1992). Beyond the wall: Memoirs of an East and West German spy. Brassey's.

Chicago Style (17th ed.) Citation

Stiller. Beyond the Wall: Memoirs of an East and West German Spy. New York: Brassey's, 1992.

MLA (8th ed.) Citation

Stiller. Beyond the Wall: Memoirs of an East and West German Spy. Brassey's, 1992.

Warning: These citations may not always be 100% accurate.