@misc{indiciaef248dd0bc3f1,
  title = {Readership survey.},
  author = {R J Genco and R Shafer},
  year = {1989},
  doi = {10.1902/jop.1989.60.10.591},
  url = {https://pubmed.ncbi.nlm.nih.gov/2810012/},
  note = {Source identifier: 2810012}
}