TY  - RPRT
TI  - Contingency interaction analysis in psychotherapy.
AU  - M L Canfield
AU  - W R Walker
AU  - L G Brown
PY  - 1991
DO  - 10.1037//0022-006x.59.1.58
UR  - https://pubmed.ncbi.nlm.nih.gov/2002143/
ID  - 2002143
ER  -