@misc{indiciaeaaf732593eb7,
  title = {Natural land slopes in the Ellington quadrangle, Connecticut},
  author = {Rachel M. Barker},
  year = {1972},
  doi = {10.3133/ofr7215},
  url = {https://pubs.usgs.gov/publication/ofr7215},
  note = {Source identifier: ofr7215}
}