TY  - BOOK
AU  - Gnagey,William J
AU  - Chesebro,Patricia A
AU  - Johnson,James J
TI  - Learning environments: Readings in educational psychology 
SN  - 0030775906
U1  - 370.15 
PY  - 1972///
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Educational psychology
KW  - Readings
ER  -