@misc{indiciae43eca17ee508,
  title = {Quaternary geologic map of the Louisville 4° x 6° quadrangle, United States},
  author = {Henry Hamilton Gray and N. K. Bleuer and J.A. Linebacker and W. C. Swadley and R. A. Miller and R. P. Goldthwait and R. A. Ward and David S. Fullerton and Charles A. Bush},
  year = {1991},
  doi = {10.3133/i1420(nj16)},
  url = {https://pubs.usgs.gov/publication/i1420(NJ16)},
  note = {Source identifier: i1420(NJ16)}
}