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		Cleaning Up after Industry. by Valenti, Micheal Source: Mechanical Engineering Material type: Article; Format: print Availability: Items available for loan: Engr Abul Kalam Library (1). Request article
		Advanced Energy Systems Preserving Earth'S Stratosphere; Ozone Levels InArctic and Antarctic Should Begin to Recover Due to Reductions in Chloroflourocarbon Production But Greenhouse Warming May Exacerbate Losses ofGas InPolar Regions. by Newman, Paul A Source: Mechanical Engineering Material type: Article; Format: print Availability: Items available for loan: Engr Abul Kalam Library (1). Request article

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