@misc{indiciaefb84f344e753,
  title = {A guide to safe field operations},
  author = {D. K. Yobbi and T.H. Yorke and R.T. Mycyk},
  year = {1996},
  doi = {10.3133/ofr95777},
  url = {https://pubs.usgs.gov/publication/ofr95777},
  note = {Source identifier: ofr95777}
}