TY  - RPRT
TI  - Human reinforcement: vicarious and direct.
AU  - F H KANFER
AU  - A R MARSTON
PY  - 1963
DO  - 10.1037/h0045972
UR  - https://pubmed.ncbi.nlm.nih.gov/13962221/
ID  - 13962221
ER  -