APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.