TY  - BOOK
AU  - Gay, L.R.
TI  - Educational research : : competencies for analysis and application 
SN  - 0023408146
AV  - LB 1028 G39 1996
PY  - 1996///
CY  - Upper Saddle River, New Jersey 
PB  - : Merril
KW  - Educación
KW  - - Investigación
ER  -