TY  - BOOK
AU  - Tyler, Leona Elizabeth 
TI  - The psychology of human differences, by Leona E. Tyler
SN  - NO ISBN
U1  - 155 TYL NO 4 
PY  - 1956///
CY  - New York 
PB  -  Appleton-Century-Crofts
KW  - DIFFERENCE PSYCHOLOGY
ER  -