@misc{indiciae52949b25da64,
  title = {Subsea mineral resources and problems related to their development},
  author = {V.E. McKelvey and J. I. Tracey and G.E. Stoertz and J. G. Vedder},
  year = {1969},
  doi = {10.3133/cir619},
  url = {https://pubs.usgs.gov/publication/cir619},
  note = {Source identifier: cir619}
}