TY  - BOOK
AU  - Alkin , Marvin C. 
TI  - Evaluation roots : a wider perspective of theorists' views and influences
SN  - 9781412995740
U1  - 001.4 
PY  - 2013///
CY  - Los Angeles
PB  - Sage
KW  -  Evaluation research (Social action programs) ; Evaluation research (Social action programs) -- History
ER  -