TY  - BOOK
AU  - Rossi, Peter H.
AU  - Freeman, Howard E. 
AU  - Lipsey, Mark W. 
TI  - Evaluation - a systematic approach
U1  - 361.6'1'072 
PY  - 1999///
CY  - New Delhi
PB  - Sage
KW  - Systematic Approach
ER  -