TY  - BOOK
AU  - Shadish W R
AU  - Cook T D
AU  - Leviton L C.
TI  - Foundations of program evaluation: Theories of practice
SN  - 0080393551
PY  - 1991///
CY  - Newbury Park
PB  - Sage Publications
KW  - ProgramEvaluation
KW  - ProgramEvaluation-methods
KW  - Research
KW  - Research-methods
KW  - Social Sciences-Research
ER  -