AU  - Freeman,Chris
AU  - Tyrer,Peter J.
TI  - Research methods in psychiatry: a beginner's guide 
SN  - 97809022414810
U1  - 616.890072 20
PY  - 1992///
CY  - London
PB  - Gaskell
KW  - Psychiatry
KW  - Research
KW  - Research Design
ER  -