APA-viite (7. p.)
Sulick, M. J. (2013). American spies: Espionage against the US from the Cold War to the present. Georgetown University Press.
Chicago-viite (17. p.)
Sulick, Michael J. American Spies: Espionage Against the US from the Cold War to the Present. Washington, DC: Georgetown University Press, 2013.
MLA-viite (9. p.)
Sulick, Michael J. American Spies: Espionage Against the US from the Cold War to the Present. Georgetown University Press, 2013.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.