Kumar, H. D., & Swati Kumar. (1997). Global and general environment. Anmol.
シカゴスタイル引用形Kumar, Har Darshan, , Swati Kumar. Global and General Environment. New Delhi: Anmol, 1997.
MLA引用形式Kumar, Har Darshan, , Swati Kumar. Global and General Environment. Anmol, 1997.
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