@misc{indiciae4a577a10f6d1,
  title = {Educational psychology.},
  author = {J K ELMGREN},
  year = {1952},
  doi = {10.1146/annurev.ps.03.020152.002121},
  url = {https://pubmed.ncbi.nlm.nih.gov/12977197/},
  note = {Source identifier: 12977197}
}