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, Inc., 
KW  - Educational psychology
N1  - Includes Index.
ER  -