TY - RPRT TI - New information resources of the U.S. Geological Survey Library System, March 1989 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1989 DO - 10.3133/ofr89400c UR - https://pubs.usgs.gov/publication/ofr89400C ID - ofr89400C ER -