TY - RPRT TI - Geochemical survey of the western energy regions (formerly Geochemical survey of the western coal regions), third annual progress report, July 1976 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1976 DO - 10.3133/ofr76729 UR - https://pubs.usgs.gov/publication/ofr76729 ID - ofr76729 ER -