TY  - BOOK
AU  - Chen,Huey-tsyh
TI  - Practical program evaluation: theory-driven evaluation and the integrated evaluation perspective 
SN  - 9781412992305
AV  - H62 .C36 2015
PY  - 2015///
CY  - Los Angeles
PB  - SAGE Publications
KW  - Evaluation research (Social action programs)
N1  - Includes bibliographical references (pages 412- 425) and index
ER  -