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	1.	No cover image available Nitrification of secondary municipal waste effluents by rotating bio-discs / Jack A. Borchardt...[et. al.] by Borchardt, Jack A United States. Environmental Protection Agency Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington : U.S. G.P.O., 1978 Availability: Items available for loan: National Library of India (1)Call number: U.S. 639.8028 Ni 638. Place hold Request article Save to lists
	2.	No cover image available Nitrogen and phosphorus losses from Agronomy plots in north Albama by Bradford, Robert R Geological Survey (U.S.) New England Interstate Water Pollution Control Commission United States. Environmental Protection Agency Series: Environmental protection technology series Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington : Office of Research and Development, 1974 Availability: Items available for loan: National Library of India (1)Call number: U.S 363.739 Us 3 n. Place hold Request article Save to lists

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