@misc{indiciae87348918c87f,
  title = {Verbal discrimination task performance as a function of self versus external reinforcement, I-E scale performance, and subject versus experimenter determination of response.},
  author = {J J Unmacht and F W Obitz},
  year = {1974},
  doi = {10.1080/00223980.1974.9923896},
  url = {https://pubmed.ncbi.nlm.nih.gov/4809734/},
  note = {Source identifier: 4809734}
}