Cita APA (7th ed.)
Certo, S. C., Douglas, M. E., & Husted, S. W. (1987). Business (2nd ed.). Wm. C. Brown.
Cita Chicago (17th ed.)
Certo, Samuel C., Max E. Douglas, i Stewart W. Husted. Business. 2nd ed. Dubuque, Iowa: Wm. C. Brown, 1987.
Cita MLA (9th ed.)
Certo, Samuel C., et al. Business. 2nd ed. Wm. C. Brown, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.