Gaya APA

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

Gaya MLA

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