TY  - BOOK
AU  - Lawrence B. Mohr
TI  - Impact analysis for program evaluation
SN  - 0-8039-4981-2
U1  - 658.404 
PY  - 1992///
CY  - New Delhi
PB  - Sage Publications
N1  - Lawrence B. Mohr: Impact analysis for program evaluation.  New Delhi.  Sage Publications, 1992. 0-8039-4981-2--(658.404MOH)
ER  -