@misc{indiciae1330a96254ae,
  title = {Geologic map of the surficial deposits of the Topopah Spring Quadrangle, Nye County, Nevada},
  author = {W. C. Swadley and D. L. Hoover},
  year = {1989},
  doi = {10.3133/i2018},
  url = {https://pubs.usgs.gov/publication/i2018},
  note = {Source identifier: i2018}
}