TY  - RPRT
TI  - Ground-water levels in the United States, 1963-67, northeastern states
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1970
DO  - 10.3133/wsp1977
UR  - https://pubs.usgs.gov/publication/wsp1977
ID  - wsp1977
ER  -