@misc{indiciaed91819fb3c97,
  title = {Map showing natural land slopes, Glastonbury Quadrangle, Connecticut},
  author = {J.A. Radway},
  year = {1975},
  doi = {10.3133/ofr75120},
  url = {https://pubs.usgs.gov/publication/ofr75120},
  note = {Source identifier: ofr75120}
}