Cita APA (7th ed.)

Nickels, W. G. (1987). Understanding business. Times Mirror/Mosby College Pub..

Cita Chicago (17th ed.)

Nickels, William G. Understanding Business. St. Louis: Times Mirror/Mosby College Pub., 1987.

Cita MLA (9th ed.)

Nickels, William G. Understanding Business. Times Mirror/Mosby College Pub., 1987.