@misc{indiciaed5fd129c8653,
  title = {Iron ore resources of the Philippines},
  author = {James Foster Harrington and L.E. Andrews},
  year = {1969},
  doi = {10.3133/ofr69119},
  url = {https://pubs.usgs.gov/publication/ofr69119},
  note = {Source identifier: ofr69119}
}