@misc{indiciae3c1414dfba2e,
  title = {Radiocarbon activity of shells from living clams and snails},
  author = {M. Rubin and D.W. Taylor},
  year = {1963},
  doi = {10.1126/science.141.3581.637.a},
  url = {https://pubs.usgs.gov/publication/70010629},
  note = {Source identifier: 70010629}
}