Wilson, J. Q. (1992). American government: Institutions and policies (5th ed.). D.C. Heath & Co.
Cita Chicago (17th ed.)Wilson, James Q. American Government: Institutions and Policies. 5th ed. Lexington, Mass: D.C. Heath & Co, 1992.
Cita MLA (9th ed.)Wilson, James Q. American Government: Institutions and Policies. 5th ed. D.C. Heath & Co, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.