TY  - BOOK
AU  - Vander Kamp Leo J Th Ed.
AU  -  De Gruijter Dato N M Ed.
AU  -  Langerak Willem F Ed.
TI  - Psychometrics for educational debates
U1  - S:3:6, M0 
PY  - 1980///
CY  - Chichester
PB  - John Wiley      
ER  -