TY  - BOOK
AU  - Richard M. Grinnell
AU  - Peter A. Gabor
TI  - Program evaluation for social workers : foundations of evidence-based programs
U1  - 361.3 
PY  - 2012///
CY  - New York
PB  -  Oxford University Press
KW  - Human services 
KW  - Evaluation 
KW  -  Case studies
ER  -