TY  - RPRT
TI  - Depression: a behavioral formulation.
AU  - R P Liberman
AU  - D E Raskin
PY  - 1971
DO  - 10.1001/archpsyc.1971.01750120031006
UR  - https://pubmed.ncbi.nlm.nih.gov/5578097/
ID  - 5578097
ER  -