Verma, S. (1996). National information system in education: A comparative study. Concept.
Citazione stile Chigago Style (17a edizione)Verma, S.L. National Information System in Education: A Comparative Study. New Delhi: Concept, 1996.
Citatione MLA (9a ed.)Verma, S.L. National Information System in Education: A Comparative Study. Concept, 1996.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.