SURESH GOURI. (2007). ENVIRONMENTAL STUDIES AND ETHICS. I K INTERNATIONAL PVT LTD.
Chicagoスタイル(17版)引用形式SURESH GOURI. ENVIRONMENTAL STUDIES AND ETHICS. NEW DELHI: I K INTERNATIONAL PVT LTD, 2007.
MLA(9版)引用形式SURESH GOURI. ENVIRONMENTAL STUDIES AND ETHICS. I K INTERNATIONAL PVT LTD, 2007.
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