@misc{indiciaedb980ba4df79,
  title = {An exploratory study in selective functions of concepts.},
  author = {R D PRALL and W L BROWN},
  year = {1957},
  doi = {10.1080/00221309.1957.9920356},
  url = {https://pubmed.ncbi.nlm.nih.gov/13463290/},
  note = {Source identifier: 13463290}
}