TY  - BOOK
ED  - Educational Testing Service
TI  - Sequential tests of educational progress [STEP] / 
PY  - 1957///
CY  - New Jersey : 
PB  - Educational Testing Service, 
KW  - Psicometría
KW  - Tests
KW  - Tests de inteligencia
N1  - Contenido: Technical report, technical report supplement 1958, manual for interpreting scores - mathematics, form 2B - mathematics, directions for administering and scoring
ER  -