@misc{indiciae5080b538f7a5,
  title = {Chromite deposits of the north-central Zambales Range, Luzon, Philippines},
  author = {Darwin L. Rossman},
  year = {1970},
  doi = {10.3133/ofr70281},
  url = {https://pubs.usgs.gov/publication/ofr70281},
  note = {Source identifier: ofr70281}
}