@misc{indiciae0f8e9196d11a, title = {Aeromagnetic map of the Worthington quadrangle and parts of the Plainfield and Peru quadrangles, Berkshire and Hampshire Counties, Massachusetts}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1968}, doi = {10.3133/gp627}, url = {https://pubs.usgs.gov/publication/gp627}, note = {Source identifier: gp627} }