Sarkar, D. N. (2009). Environmental Studies F.Y.B.Com (1st edn.). Himalaya Publishing House.
Čikaški stil citiranja (17. izdanje)Sarkar, D. N. Environmental Studies F.Y.B.Com. 1st edn. Mumbai: Himalaya Publishing House, 2009.
MLA način citiranja (9. izdanje)Sarkar, D. N. Environmental Studies F.Y.B.Com. 1st edn. Himalaya Publishing House, 2009.
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