Cita APA (7th ed.)
Ferrell, O., Ferrell, L., & Hirt, G. A. (2009). Business: A changing world (7th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Ferrell, O.C, Linda Ferrell, i Geoffrey A. Hirt. Business: A Changing World. 7th ed. Boston: McGraw-Hill, 2009.
Cita MLA (9th ed.)
Ferrell, O.C, et al. Business: A Changing World. 7th ed. McGraw-Hill, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.