APA (7th ed.) Citation
De, A. K., & De, A. K. (2001). Environmental studies. New Age International.
Chicago Style (17th ed.) Citation
De, Anil Kumar, and Arnab Kumar De. Environmental Studies. Calcutta: New Age International, 2001.
MLA (9th ed.) Citation
De, Anil Kumar, and Arnab Kumar De. Environmental Studies. New Age International, 2001.
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