@misc{indiciae3c551580ac6e,
  title = {Self-classification by subjects using Toman's birth-order categories.},
  author = {E L Vockell and D W Felker},
  year = {1971},
  doi = {10.2466/pr0.1971.29.3.1010},
  url = {https://pubmed.ncbi.nlm.nih.gov/5124151/},
  note = {Source identifier: 5124151}
}