TY  - BOOK
AU  - Gruijter Dato N M De Ed.
AU  -  Kamp Leo J Th Van Der Ed.
TI  - Advances in psychological and educational measurement
SN  - 0-471-01817-1
PY  - 1976///
CY  - London, UK
PB  - John Wiley and Sons
KW  - Educational Text  And Measurement - Congress
ER  -