@misc{indiciae7b6f6628bc5e,
  title = {Jiddah and vicinity, ... Saudi Arabia : 1:25,000-scale topographic maps},
  author = {Saudi Arabia. Deputy Ministry for Mineral Resources and Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1983},
  url = {https://pubs.usgs.gov/publication/70157625},
  note = {Source identifier: 70157625}
}