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1.
Hydrology and water quality of the copper nickel study region, Northeastern Minesota / by Donald I.Siegel by
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: Washington : United States Government Printing Office, 1980
Availability: Items available for loan: National Library of India (1)Call number: U.S 551.48 Si 15 h.

2.
Hydrology and water quality of the copper nickel study region, Northeastern Minesota / by Donald I.Siegel by
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: Washington : United States Government Printing Office, 1980
Availability: Items available for loan: National Library of India (1)Call number: U.S 551.48 Si 15 h.

3.
Hydrogeology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States / by H.L. Young ; with a section on ground-water quality by D.I. Siegel by Series: Regional aquifer-system analysis--northern Midwest | U.S. Geological Survey professional paper ; 1405-B
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: Washington : U.S. G.P.O., 1992
Availability: Items available for loan: National Library of India (1)Call number: U.S. 551.490977 Y 842 h.

                                                                           
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