@misc{indiciae4a5bd77e145e,
  title = {Operant learning (R-S) principles applied to nail-biting.},
  author = {T M McClanahan},
  year = {1995},
  doi = {10.2466/pr0.1995.77.2.507},
  url = {https://pubmed.ncbi.nlm.nih.gov/8559875/},
  note = {Source identifier: 8559875}
}