@misc{indiciaef85371f7d5ab,
  title = {Calcic, gypsic, and siliceous soil chronosequences in arid and semiarid environments},
  author = {J.W. Harden and E. M. Taylor and M.C. Reheis and L. D. McFadden},
  year = {1991},
  url = {https://pubs.usgs.gov/publication/70016301},
  note = {Source identifier: 70016301}
}