APA (7e ed.) Bronvermelding

Whitten, J. (2005). System analysis and design methods (6.). Tata McGraw - Hill.

Chicago (17e ed.) Bronvermelding

Whitten, Jeffery. System Analysis and Design Methods. 6. New Delhi: Tata McGraw - Hill, 2005.

MLA (9e ed.) Bronvermelding

Whitten, Jeffery. System Analysis and Design Methods. 6. Tata McGraw - Hill, 2005.