TY  - RPRT
TI  - National Geologic Mapping Program; goals, objectives, and long-range plans
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1987
DO  - 10.3133/cir1020
UR  - https://pubs.usgs.gov/publication/cir1020
ID  - cir1020
ER  -