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1.
Estimating costs for water treatment as a function of size and treatment efficiency / by Robert C. Gumerman, Russell L. Culp, Siguard P. Hansen. by Series: Environmental protection technology series
Material type: Text Text; Literary form: Not fiction
Language: English
Publication details: Cincinnati, Ohio : Springfield, Va. : Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; For sale by the National Technical Information Service, 1978
Availability: Items available for loan: National Library of India (1)Call number: US 338.43628162.

2.
Water resources data for California : water year 1979 by Series: U.S. Geological survey water- data report ; no. CA-79-2
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: Menlo Park, Calif. : Springfield, VA : U.S. Dept. of the Interior, Geological Survey ; National Technical Information Service, distributor, 1981
Availability: Items available for loan: National Library of India (2)Call number: US 333.91021 Un 31, ...

                                                                           
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