Verma, S. (1996). National information system in education: A comparative study. Concept.
Cita Chicago (17th ed.)Verma, S.L. National Information System in Education: A Comparative Study. New Delhi: Concept, 1996.
Cita MLA (9th ed.)Verma, S.L. National Information System in Education: A Comparative Study. Concept, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.