TY  - BOOK
AU  - Mohr,Lawrence B.
TI  - Impact analysis for program evaluation
AV  - H97 M637I 1995
PY  - 1995///
CY  - Thousand Oaks, Calif.
PB  - Sage
KW  - POLICY SCIENCES
KW  - EVALUATION RESEARCH (SOCIAL ACTION PROGRAMS)
ER  -