@misc{indiciae69c6c126fe69,
  title = {Lithotectonic terrane map of the North American Cordillera},
  author = {Norman J. Silberling and D. L. Jones and J.W.H. Monger and P.J. Coney},
  year = {1992},
  doi = {10.3133/i2176},
  url = {https://pubs.usgs.gov/publication/i2176},
  note = {Source identifier: i2176}
}