The man who kept the secrets : Richard Helms & the CIA

MLA

Powers, Thomas. The Man Who Kept the Secrets : Richard Helms & the Cia. New York: Knopf, 1979.

APA

Powers, T. (1979). The man who kept the secrets : Richard Helms & the CIA. New York: Knopf.

Chicago

Powers, Thomas, The Man Who Kept the Secrets: Richard Helms & the CIA. New York: Knopf, 1979.