APA (7th ed.) Citation

Persico, J. E. (1990). Casey: From the OSS to the CIA. Penguin Books.

Chicago Style (17th ed.) Citation

Persico, Joseph E. Casey: From the OSS to the CIA. New York: Penguin Books, 1990.

MLA (9th ed.) Citation

Persico, Joseph E. Casey: From the OSS to the CIA. Penguin Books, 1990.