@misc{indiciaec89bf5b9a079,
  title = {Problems of generalizing from pilot and demonstration project evaluations.},
  author = {P T Leapley},
  year = {1987},
  doi = {10.1177/019394598700900412},
  url = {https://pubmed.ncbi.nlm.nih.gov/3433745/},
  note = {Source identifier: 3433745}
}