@misc{indiciae346fdd25fe92,
  title = {Progress report on selected geophysical activities of the United States, 1973-76; a quadrennium of cooperation and progress},
  author = {Kendall L. Svendsen},
  year = {1977},
  doi = {10.3133/cir763},
  url = {https://pubs.usgs.gov/publication/cir763},
  note = {Source identifier: cir763}
}