TY  - RPRT
TI  - Aeromagnetic map of the Williamsburg quadrangle and part of the Shelburne Falls quadrangle, Franklin and Hampshire Counties, Massachusetts
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1969
DO  - 10.3133/gp659
UR  - https://pubs.usgs.gov/publication/gp659
ID  - gp659
ER  -