@misc{indiciaefdf8afea72aa,
  title = {Oblique map of Rabaul, Papua New Guinea},
  author = {T. R. Alpha and H. Gary Greene},
  year = {1985},
  doi = {10.3133/mf1778},
  url = {https://pubs.usgs.gov/publication/mf1778},
  note = {Source identifier: mf1778}
}