@misc{indiciaef7f294945224,
  title = {Sedimentary and igneous rocks of the Grays River Quadrangle, Washington},
  author = {Edward W. Wolfe and Edwin H. McKee},
  year = {1972},
  doi = {10.3133/b1335},
  url = {https://pubs.usgs.gov/publication/b1335},
  note = {Source identifier: b1335}
}