Παραπομπή σε μορφή APA (7η εκδ.)

Spitzer, R. J. (2012). The presidency and public policy: The four arenas of presidential power (Paperback ed.). University of Alabama Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. Paperback ed. Tuscaloosa: University of Alabama Press, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spitzer, Robert J. The Presidency and Public Policy: The Four Arenas of Presidential Power. Paperback ed. University of Alabama Press, 2012.