APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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