Spitzer, R. J. (1983). The presidency and public policy: The four arenas of presidential power. University of Alabama Press.
Chicago-Zitierstil (17. Ausg.)Spitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. University, Ala: University of Alabama Press, 1983.
MLA-Zitierstil (9. Ausg.)Spitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. University of Alabama Press, 1983.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.