@misc{indiciaed90cdef91ff5,
  title = {Geologic map of the Ikpikpuk River quadrangle, Alaska},
  author = {Charles G. Mull and David W. Houseknecht and G. H. Pessel and Christopher P. Garrity},
  year = {2005},
  doi = {10.3133/sim2817b},
  url = {https://pubs.usgs.gov/publication/sim2817B},
  note = {Source identifier: sim2817B}
}