एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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