TY  - RPRT
TI  - Operant analysis of encounter groups: a pilot study.
AU  - K E Marshall
AU  - A D Colman
PY  - 1974
DO  - 10.1080/00207284.1974.11492268
UR  - https://pubmed.ncbi.nlm.nih.gov/4810412/
ID  - 4810412
ER  -