@misc{indiciae2cbd45fef32a,
  title = {Promoting audio-visual aids.},
  author = {R C Winton},
  year = {1968},
  doi = {10.1038/2201283a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4178333/},
  note = {Source identifier: 4178333}
}