TY  - GEN
AU  - Vernon,Philip Ewart
TI  - The measurement of abilities
AV  - SPE 5019 
U1  - 371.2/6 
PY  - 1949///
CY  - London
PB  - University of London Press, 
KW  - Ability
KW  - Testing
KW  - Examinations
N1  - Includes bibliographical references
ER  -