Spitzer, R. J. (2012). The presidency and public policy: The four arenas of presidential power (Paperback ed.). University of Alabama Press.
Chicago (17e ed.) BronvermeldingSpitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. Paperback ed. Tuscaloosa: University of Alabama Press, 2012.
MLA (9e ed.) BronvermeldingSpitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. Paperback ed. University of Alabama Press, 2012.
Let op: Deze citaties zijn niet altijd 100% accuraat.