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		No cover image available Chemical and biological methods of water and air pollution control : a practical hygiene manual by Purohit, S.K \| . Series: Edition: Language: English Publication details: ; Bikaner : Agro Botanical Pub., 1985 ; 1985Availability: Items available for loan: 1 Call number: 628.54:628.34 Pur. Place hold Add to cart (remove)
		Physicochemical processes for water quality control by Weber, Walter J \| . Series: Environmental science and technology : a wiley-Interscience series of texts adn monographsEdition: Language: English Publication details: New York ; Wiley Interscience ; 1972Availability: Items available for loan: 1 Call number: 628.16Web(5). Place hold Add to cart (remove)

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