APA-viite (7. p.)
Calabresi, S. G., & Yoo, C. S. (2008). The unitary executive: Presidential power from Washington to Bush. Yale University Press.
Chicago-viite (17. p.)
Calabresi, Steven G., ja Christopher S. Yoo. The Unitary Executive: Presidential Power from Washington to Bush. New Haven, CT: Yale University Press, 2008.
MLA-viite (9. p.)
Calabresi, Steven G., ja Christopher S. Yoo. The Unitary Executive: Presidential Power from Washington to Bush. Yale University Press, 2008.
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