Sarkar, S. (2014). A textbook of environmental studies. Mangalam Publisher.
Chicagoスタイル(17版)引用形式Sarkar, Sukanta. A Textbook of Environmental Studies. Delhi: Mangalam Publisher, 2014.
MLA(9版)引用形式Sarkar, Sukanta. A Textbook of Environmental Studies. Mangalam Publisher, 2014.
警告: この引用は必ずしも正確ではありません.