kaushik, a., & Kaushik, C. P. (2014). perspectives in environmental studies. New age international limited.
Chicago-Zitierstil (17. Ausg.)kaushik, anubha, und C P. Kaushik. Perspectives in Environmental Studies. New delhi: New age international limited, 2014.
MLA-Zitierstil (9. Ausg.)kaushik, anubha, und C P. Kaushik. Perspectives in Environmental Studies. New age international limited, 2014.