TY - GEN AU - Montgomery,John H. AU - Welkom,Linda M. TI - Groundwater chemicals desk reference SN - 0873712862 PY - 1990/// CY - Chelsea, Mich. PB - Lewis Publishers KW - Pollutants KW - Handbooks, manuals, etc KW - Groundwater KW - Pollution N1 - Errata slip inserted ER -