TY  - BOOK
AU  - Worthen, Blaine. R and James R. Sanders.
TI  - Educational evaluation: Alternative approaches and practical guidelines
SN  - 0582285518
AV  - LB 1028  W67 1987 
PY  - 1987///
CY  - White plains
PB  - Longman
KW  - Education
KW  - Evaluation
KW  - United States
ER  -