kaushik, a., & Kaushik, C. P. (2014). perspectives in environmental studies. New age international limited.
Citace podle Chicago (17th ed.)kaushik, anubha, a C P. Kaushik. Perspectives in Environmental Studies. New delhi: New age international limited, 2014.
Citace podle MLA (9th ed.)kaushik, anubha, a C P. Kaushik. Perspectives in Environmental Studies. New age international limited, 2014.