Dyfyniad APA

Sarkar, S. (2014). A textbook of environmental studies. Mangalam Publisher.

Dyfyniad Arddull Chicago

Sarkar, Sukanta. A Textbook of Environmental Studies. Delhi: Mangalam Publisher, 2014.

Dyfyniad MLA

Sarkar, Sukanta. A Textbook of Environmental Studies. Mangalam Publisher, 2014.

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