TY  - BOOK
AU  - Rossi,Peter H.
AU  - Lipsey,Mark W.
AU  - Henry,Gary T.
TI  - Evaluation: a systematic approach 
SN  - 97815063866017 (paperback)
AV  - H62 R67  
PY  - 2019///]
CY  - Los Angeles
PB  - SAGE
KW  - Evaluation research (Social action programs)
N1  - Includes bibliographical references and index
ER  -