TY  - RPRT
TI  - Gravity anomaly map of the United States; Part A: Conterminous United States
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1986
DO  - 10.3133/gp964
UR  - https://pubs.usgs.gov/publication/gp964
ID  - gp964
ER  -