@misc{indiciae743bd8bc19bd,
  title = {Ground magnenometer surveys over known and suspected breccia pipes on the Coconino Plateau, northwestern Arizona},
  author = {B. S. Van Gosen and K. J. Wenrich and W. L. computer graphics by Thoen},
  year = {1989},
  doi = {10.3133/b1683c},
  url = {https://pubs.usgs.gov/publication/b1683C},
  note = {Source identifier: b1683C}
}