TY  - BOOK
AU  - Hambleton,Ronald K.
AU  - Zaal,Jac N.
TI  - Advances in educational and psychological testing: theory and applications  
SN  - 0792390709
PY  - 1991///
CY  - Boston
PB  - Kluwer Academic Publishers
KW  - Psychological tests
KW  - Educational tests and measurements
ER  -