TY - BOOK T1 - Hydrologic and chemical evaluation of the ground-water resources of northwest Elkhart County, Indiana / DA - [1981] CY - Indianapolis, Ind. : AU - Imbrigiotta, Thomas E. AU - Martín González, Angel. VL - 81-53 CN - GB701 CN - GB701 PB - U.S. Geological Survey, PP - Indianapolis, Ind. : PY - [1981] N1 - "October 1981." ID - 52375 KW - Water quality KW - Groundwater TI - Hydrologic and chemical evaluation of the ground-water resources of northwest Elkhart County, Indiana / ER -