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