APA citiranje

DE RAJ KHANNA. ECOLOGY AND POLLUTION OF GANGA RIVER. ASHISH PUBLISHING HOUSE.

Chicago Edition Citation

DE RAJ KHANNA. ECOLOGY AND POLLUTION OF GANGA RIVER. ASHISH PUBLISHING HOUSE.

MLA citiranje

DE RAJ KHANNA. ECOLOGY AND POLLUTION OF GANGA RIVER. ASHISH PUBLISHING HOUSE.

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