APA Citatie

Thomson South-Western. (2007). Virtual tutor system: Michigan version 3.0. Thomson South-Western.

Chicago Style citaat

Thomson South-Western. Virtual Tutor System: Michigan Version 3.0. Thomson South-Western, 2007.

MLA citatie

Thomson South-Western. Virtual Tutor System: Michigan Version 3.0. Thomson South-Western, 2007.

Let op: Deze citaties zijn niet altijd 100% accuraat.