Dyfyniad APA

Gaur,P.K. (2012). Textbook of environmental chemistry. Sonali.

Dyfyniad Arddull Chicago

Gaur,P.K. Textbook of Environmental Chemistry. New Delhi: Sonali, 2012.

Dyfyniad MLA

Gaur,P.K. Textbook of Environmental Chemistry. Sonali, 2012.

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