Cita APA (7th ed.)

Nickels, W. G. (2010). Understanding Business (9th.). McGraw Hill.

Cita Chicago (17th ed.)

Nickels, William G. Understanding Business. 9th. New Delhi: McGraw Hill, 2010.

Cita MLA (9th ed.)

Nickels, William G. Understanding Business. 9th. McGraw Hill, 2010.