TY - RPRT TI - Coordination activities of the National Mapping Division, U. S. Geological Survey, fiscal year 1983 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1984 DO - 10.3133/ofr84309 UR - https://pubs.usgs.gov/publication/ofr84309 ID - ofr84309 ER -