@misc{indiciae53c802957963,
  title = {Behavior systems and reinforcement: an integrative approach.},
  author = {W Timberlake},
  year = {1993},
  doi = {10.1901/jeab.1993.60-105},
  url = {https://pubmed.ncbi.nlm.nih.gov/8354963/},
  note = {Source identifier: 8354963}
}