TY  - BOOK
AU  - Berk,Richard A.
AU  - Rossi,Peter H.
TI  - Thinking about program evaluation
AV  - H62 B474T
PY  - 1990///
CY  - Newbury Park, Calif.
PB  - Sage
KW  - EVALUATION RESEARCH (SOCIAL ACTION PROGRAMS)
KW  - UTILIZATION
ER  -