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1. Environmental air pollution and its control

by Chhatwal, G. R; Mehra, M.C; Katyal, T.

Edition: 1st ed. Publisher: New Delhi Anmol Publishing 1989Availability: Items available for loan: Central Library, BUET [628.53/CHH/1989] (2).

2. Environmental noise pollution and its control

by Chhatwal, G. R; Mehra, M.C; Katyal, T.

Edition: 1st ed. Publisher: New Delhi Anmol publishing 1989Availability: Items available for loan: Central Library, BUET [628.5/CHH/1989] (2).