@misc{indiciae4663d3722ee5,
  title = {Is closed circuit TV a worth-while teaching aid?},
  author = {G Smith},
  year = {1974},
  doi = {10.1111/j.1365-2923.1974.tb01975.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4138586/},
  note = {Source identifier: 4138586}
}