@misc{indiciae3c3142578df1,
  title = {Maps showing the ratio of sandstone to mudstone and the number of mudstone interbeds in the Westwater Canyon Member of the Morrison Formation, San Juan Basin, New Mexico},
  author = {A. R. Kirk and S. M. Condon},
  year = {1989},
  doi = {10.3133/i1957c},
  url = {https://pubs.usgs.gov/publication/i1957C},
  note = {Source identifier: i1957C}
}