TY  - RPRT
TI  - Aeromagnetic map of the Blackstone Quadrangle, Worcester County, Massachusetts, and Providence County, Rhode Island
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1971
DO  - 10.3133/gp770
UR  - https://pubs.usgs.gov/publication/gp770
ID  - gp770
ER  -