@misc{indiciaed91fba713a68,
  title = {The oceanic islands - Azores},
  author = {Ridley, W. I. and Watkins, N. D. and Macfarlane, D. J.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19750046611},
  note = {Source identifier: 19750046611}
}