G. Nickels, W., M. McHugh, J., & M. McHugh, S. (1993). Understanding Business, 3rd ed. McGraw-Hill.
Cita Chicago Style (17a ed.)G. Nickels, William, James M. McHugh, y Susan M. McHugh. Understanding Business, 3rd Ed. New York: McGraw-Hill, 1993.
Cita MLA (9a ed.)G. Nickels, William, et al. Understanding Business, 3rd Ed. McGraw-Hill, 1993.
Precaución: Estas citas no son 100% exactas.