@misc{indiciaee9de65e34e4c,
  title = {Ability and achievement.},
  author = {O D Duncan},
  year = {1968},
  doi = {10.1080/19485565.1968.9987747},
  url = {https://pubmed.ncbi.nlm.nih.gov/5699846/},
  note = {Source identifier: 5699846}
}