@misc{indiciae7f9909358d1f,
  title = {Report on resistivity measurements with estimates of depth to bedrock at certain dam sites on the Little Colorado River tributaries, 1939},
  author = {H. Cecil Spicer},
  year = {1939},
  doi = {10.3133/ofr4120},
  url = {https://pubs.usgs.gov/publication/ofr4120},
  note = {Source identifier: ofr4120}
}