TY  - BOOK
AU  - Gay,L.R.
TI  - Educational evaluation and measurement: Competencies for analysis and application 
SN  - 0675204429
AV  - LB1028 G37
PY  - 1991///
CY  - New York
PB  - Merrill
KW  - Educación
KW  - Investigación
ER  -