TY - RPRT TI - Reconnaissance for determining effects of land use and surficial geology on concentrations of selected elements on streambed materials from the coal-mining region, southwestern Indiana, October 1979 to March 1980 AU - W. G. Wilber AU - Rita R. Boje PY - 1982 DO - 10.3133/wri824013 UR - https://pubs.usgs.gov/publication/wri824013 ID - wri824013 ER -