@misc{indiciaee36cefdd2f00,
  title = {Preprocessing the 1960-1970 U. S. census public use samples.},
  author = {J M Sakoda and W J Sakoda},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4670335/},
  note = {Source identifier: 4670335}
}