TY  - BOOK
AU  - Gay,L.R.
TI  - Educational research: Competencies for analysis and application 
SN  - 0029461170
AV  - LB1028 G38 1990
PY  - 1990///
CY  - [columbus, ohio]
PB  - Merrill
KW  - Educación
KW  - Investigación
ER  -