@misc{indiciaea82a9cedc94e,
  title = {A diver operated reverse corer to collect samples of unconsolidated coarse sand},
  author = {Roberto J. Anima},
  year = {1981},
  doi = {10.1306/212f7d1f-2b24-11d7-8648000102c1865d},
  url = {https://pubs.usgs.gov/publication/70188664},
  note = {Source identifier: 70188664}
}