Gaya APA

Patterson, T, E., Halter, G, M. (2011). The American democracy (Texas edition: 10th ed.) (Texas edition: 10th ed.). New York: McGraw-Hill.

Gaya MLA

Patterson, Thomas, E.., Halter, Gary, M.. "The American democracy (Texas edition: 10th ed.)". Texas edition: 10th ed. New York: McGraw-Hill, 2011. Text.