North, M. (1991). Act of treason: The role of J. Edgar Hoover in the assassination of President Kennedy (1st Carroll & Graf ed.). Carroll & Graf Publishers.
Lua i Stíl Chicago (17ú heag.)North, Mark. Act of Treason: The Role of J. Edgar Hoover in the Assassination of President Kennedy. 1st Carroll & Graf ed. New York: Carroll & Graf Publishers, 1991.
Lua MLA (8ú heag.)North, Mark. Act of Treason: The Role of J. Edgar Hoover in the Assassination of President Kennedy. 1st Carroll & Graf ed. Carroll & Graf Publishers, 1991.
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