@misc{indiciae65f8edc0db5b,
  title = {Model, need, and cost effects in helping behavior.},
  author = {C Wagner and L Wheeler},
  year = {1969},
  doi = {10.1037/h0027569},
  url = {https://pubmed.ncbi.nlm.nih.gov/5784712/},
  note = {Source identifier: 5784712}
}