@misc{indiciae01cecff7290a,
  title = {Geologic processes at the land surface},
  author = {Howard Gordon Wilshire and K. A. Howard and C. M. Wentworth and Helen Gibbons},
  year = {1996},
  doi = {10.3133/b2149},
  url = {https://pubs.usgs.gov/publication/b2149},
  note = {Source identifier: b2149}
}