@misc{indiciae0c354b13e7df,
  title = {Conditioned reinforcement and choice.},
  author = {J A Nevin and C Mandell},
  year = {1978},
  doi = {10.1901/jeab.1978.29-135},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812034/},
  note = {Source identifier: 16812034}
}