TY - RPRT TI - New information resources of the U.S. Geological Survey Library System, October 1987 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1987 DO - 10.3133/ofr87400j UR - https://pubs.usgs.gov/publication/ofr87400J ID - ofr87400J ER -