kaushik, a., & Kaushik, C. P. (2014). perspectives in environmental studies. New age international limited.
芝加哥风格引文kaushik, anubha, 与 C P. Kaushik. Perspectives in Environmental Studies. New delhi: New age international limited, 2014.
MLA引文kaushik, anubha, 与 C P. Kaushik. Perspectives in Environmental Studies. New age international limited, 2014.
警告：这些引文格式不一定是100％准确.