TY  - BOOK
AU  - Sperry,Len
TI  - Learning performance and individual differences: essays and readings
AV  - LB1051 .S6454
U1  - 370.15/2 
PY  - 1972///]
CY  - Glenview, Ill.
PB  - Scott, Foresman
KW  - Educational psychology
KW  - Local
KW  - Individual differences
KW  - Intelligence levels
KW  - Academic achievement
N1  - 920819; Bibliography: p. 321-326
ER  -