@misc{indiciae7da5dd759be0,
  title = {Note concerning individual differences and behavior on programmed materials.},
  author = {G E Snelbecker and R C Downes},
  year = {1967},
  doi = {10.2466/pr0.1967.21.1.333},
  url = {https://pubmed.ncbi.nlm.nih.gov/6078385/},
  note = {Source identifier: 6078385}
}