Gaya APA

Patterson, T, E., Halter, G, M. (2006). The American democracy (Texas edition: 8th ed.) (8th ed.). New York: McGraw-Hill.

Gaya MLA

Patterson, Thomas, E.., Halter, Gary, M.. "The American democracy (Texas edition: 8th ed.)". 8th ed. New York: McGraw-Hill, 2006. Text.