References
The Clark Clifford Report." (1967). The Liberty Incident. Retrieved on March 14, 2009 at http://www.thelibertyincident.com/clifford.html
Ennes, James Jr. (1980). Assault on the Liberty. Random House, New York
Gerhard, William D. And Millington, Henry W. (1981). "Attack on a Sigint Collector: the U.S.S. Liberty." National Security Agency / Central Security Service. Retrieved on March 14, 2009 at http://www.nsa.gov/public_info/_files/uss_liberty/attack_sigint.pdf
Helms, Richard. (2003). A Look Over My Shoulder: A Life in the Central Intelligence Agency. Random House, New York