Cita APA (7th ed.)
Schiller, B. R. (2006). The economy today (10th ed.). McGraw-Hill/Irwin.
Cita Chicago (17th ed.)
Schiller, Bradley R. The Economy Today. 10th ed. Boston: McGraw-Hill/Irwin, 2006.
Cita MLA (9th ed.)
Schiller, Bradley R. The Economy Today. 10th ed. McGraw-Hill/Irwin, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.