@misc{indiciae97da2a8a2573,
  title = {Uranium-series dating of bone from the Isimila prehistoric site, Tanzania},
  author = {F.C. Howell and G.H. Cole and M.R. Kleindienst and Barney J. Szabo and K.P. Oakley},
  year = {1972},
  doi = {10.1038/237051a0},
  url = {https://pubs.usgs.gov/publication/70001418},
  note = {Source identifier: 70001418}
}