Cita APA (7th ed.)
Patterson, T. E. (2003). The American democracy (6th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Patterson, Thomas E. The American Democracy. 6th ed. Boston: McGraw-Hill, 2003.
Cita MLA (9th ed.)
Patterson, Thomas E. The American Democracy. 6th ed. McGraw-Hill, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.