@misc{indiciae5fbf4427c869,
  title = {An auditory prompting device for behavior observation.},
  author = {A D Leifer and L J Leifer},
  year = {1971},
  doi = {10.1016/0022-0965(71)90042-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/5106225/},
  note = {Source identifier: 5106225}
}