TY  - BOOK
AU  - Shadish, William R
AU  - Cook, Thomas D
AU  - Leviton, Laura C
TI  - Foundation of program evaluation: theories of practice
SN  - 0-8039-5301-1
U1  - JM 1614 
PY  - 1991///
CY  - London
PB  - Sage
KW  - EVALUACION
KW  - FUNDAMENTOS
KW  - PROGRAMAS
ER  -