Spitzer, R. J. (2012). The presidency and public policy: The four arenas of presidential power (Paperback ed.). University of Alabama Press.
Citazione stile Chigago Style (17a edizione)Spitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. Paperback ed. Tuscaloosa: University of Alabama Press, 2012.
Citatione MLA (9a ed.)Spitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. Paperback ed. University of Alabama Press, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.