TY  - RPRT
TI  - New information resources of the U.S. Geological Survey Library System, April 1990
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1990
DO  - 10.3133/ofr90400d
UR  - https://pubs.usgs.gov/publication/ofr90400D
ID  - ofr90400D
ER  -