TY  - BOOK
AU  - Rossi H. Peter, Freeman E. Howard 
TI  - Evalution: A systematic Approach 
SN  - 0-8039-4458-6
AV  - H 62 .R666 1993  
PY  - 1993///
CY  - Newbury London New Delhi 
PB  - SAGE Publication 
KW  - Evaluation Research
ER  -