@misc{indiciaefc09830e6e86,
  title = {Rare earths in the Leadville Limestone and its marble derivates},
  author = {J.C. Jarvis and T.R. Wildeman and N.G. Banks},
  year = {1975},
  doi = {10.1016/0009-2541(75)90088-1},
  url = {https://pubs.usgs.gov/publication/70010173},
  note = {Source identifier: 70010173}
}