@misc{indiciae125f0a2f0c9c,
  title = {Learning motivated by a manipulation drive.},
  author = {H F HARLOW and M K HARLOW and D R MEYER},
  year = {1950},
  doi = {10.1037/h0056906},
  url = {https://pubmed.ncbi.nlm.nih.gov/15415520/},
  note = {Source identifier: 15415520}
}