@misc{indiciae67a9d3bc3701,
  title = {Summary of revised potentiometric-surface map for Yucca Mountain and vicinity, Nevada},
  author = {E. M. Ervin and R. R. Luckey and D.J. Burkhardt},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/70018295},
  note = {Source identifier: 70018295}
}