TY  - BOOK
AU  - Guttentag Marcia Ed.
AU  -  Struening Elmer L Ed.
TI  - Handbook of evalution research
T2  - Society for the psychological study of social issues
U1  - S:7:6:f, L5.2 
PY  - 1975///
CY  - London
PB  - Sage India      
KW  - PSYCHOLOGY
ER  -