@misc{indiciae1a8bda294d4e,
  title = {Geology applied to modern highways},
  author = {Leo Maddalena},
  year = {1948},
  doi = {10.3133/ofr4817d},
  url = {https://pubs.usgs.gov/publication/ofr4817D},
  note = {Source identifier: ofr4817D}
}