@misc{indiciae868d02ed48e0,
  title = {Documentation of finite-difference model for simulation of three-dimensional ground-water flow},
  author = {Peter C. Trescott and S. P. Larson},
  year = {1976},
  doi = {10.3133/ofr76591},
  url = {https://pubs.usgs.gov/publication/ofr76591},
  note = {Source identifier: ofr76591}
}