MEHROTRA C M. (2001). DISTANCE LEARNING: PRINCIPLE FOR EFFECTIVE EVALUTION. SAGE PUBLICATIONS.
Cita Chicago (17th ed.)MEHROTRA C M. DISTANCE LEARNING: PRINCIPLE FOR EFFECTIVE EVALUTION. LONDON: SAGE PUBLICATIONS, 2001.
Cita MLA (9th ed.)MEHROTRA C M. DISTANCE LEARNING: PRINCIPLE FOR EFFECTIVE EVALUTION. SAGE PUBLICATIONS, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.