Subramanian, V. (2002). A texbook in environmental science. New Delhi: Alpha Science International.
Trích dẫn kiểu ChicagoSubramanian, V. A Texbook in Environmental Science. New Delhi: Alpha Science International, 2002.
Deismireacht MLASubramanian, V. A Texbook in Environmental Science. New Delhi: Alpha Science International, 2002.
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