APA-referens (7:e uppl.)

Spiro, E. (1971). Gehlen: Spy of the century. Random House.

Chicago-referens (17:e uppl.)

Spiro, Edward. Gehlen: Spy of the Century. New York: Random House, 1971.

MLA-referens (9:e uppl.)

Spiro, Edward. Gehlen: Spy of the Century. Random House, 1971.