@misc{indiciaee540d6317139,
  title = {Aeromagnetic map of part of the South Sandisfield quadrangle, Berkshire County, Massachusetts, and Litchfield County, Connecticut},
  author = {G. R. Boynton and Peter Popenoe and G. L. Zandle},
  year = {1965},
  doi = {10.3133/gp533},
  url = {https://pubs.usgs.gov/publication/gp533},
  note = {Source identifier: gp533}
}