@misc{indiciae86d4097a5556,
  title = {Coalfields of the Republic of Korea, Part 2: Chapters C-E},
  author = {J.A. Reinemund and E.M. Baldwin and K.G. Brill},
  year = {1957},
  doi = {10.3133/b1041ce},
  url = {https://pubs.usgs.gov/publication/b1041CE},
  note = {Source identifier: b1041CE}
}