Cita APA (7th ed.)

Ferrell, O. C., Hirt, G. A., & Ferrell, L. (2009). Business. McGraw-Hill/Irwin.

Cita Chicago (17th ed.)

Ferrell, O. C., Geoffrey A. Hirt, i Linda Ferrell. Business. New York: McGraw-Hill/Irwin, 2009.

Cita MLA (9th ed.)

Ferrell, O. C., et al. Business. McGraw-Hill/Irwin, 2009.