Environmental water pollution and its control

New Delhi Anmol Publications 1993 . 532p.

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Encyclopedia of environmental pollution and its control

New Delhi Anmol Publications 1992 . 6v.; fig., tables , Vol.1: Air pollution.- V.2. Water pollution.- V.3. Noise pollution.- V.4. Land and marine pollution.- V.5. Radiation and thermal pollution.- V.6. Environmental analysis 8170412439(set)

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Environmental water pollution and its control

Encyclopedia of environmental pollution and its control