TY  - RPRT
TI  - Natural and professional help: a process analysis.
AU  - T J Tracey
AU  - P A Toro
PY  - 1989
DO  - 10.1007/bf00931172
UR  - https://pubmed.ncbi.nlm.nih.gov/2610203/
ID  - 2610203
ER  -