TY  - BOOK
AU  - Worthen, Blaine R., Sanders, James R.
TI  - Educational evalution: : alternative approaches and practical guidelines
SN  - 0582285518
U1  - 371.26 
PY  - 1987///
CY  - New York
PB  - ; Longman
KW  - Assessment
KW  - Education
KW  - Evaluation
ER  -