Purohit,S.S, Shammi, Q., & Agrawal, A. (2004). Textbook of environmental sciences. Student Edition.
シカゴスタイル引用形Purohit,S.S, Q.J Shammi, , A.K Agrawal. Textbook of Environmental Sciences. Jodhpur: Student Edition, 2004.
MLA引用形式Purohit,S.S, et al. Textbook of Environmental Sciences. Student Edition, 2004.
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