@misc{indiciaeb699de1caddb,
  title = {International comparisons.},
  author = {W O Hagstrom and L L Hargens},
  year = {1969},
  doi = {10.1126/science.164.3875.13},
  url = {https://pubmed.ncbi.nlm.nih.gov/5773705/},
  note = {Source identifier: 5773705}
}