Gaya APA

Frank, R, H., Bernanke, B, S. (2007). Principles of microeconomics (3th ed.). New York: McGraw-Hill Irwin.

Gaya MLA

Frank, Robert, H.., Bernanke, Ben, S.. "Principles of microeconomics". 3th ed. New York: McGraw-Hill Irwin, 2007. Text.