TY  - BOOK
AU  - Cunningham,Bess V.
TI  - The prognostic value of a primary group test: a study of intelligence and relative achievement in the first grade 
SN  - 0404551394
PY  - 1972///
CY  - New York
PB  - AMS Press
KW  - Mental tests
KW  - Prediction of scholastic success
N1  - p. 53-54
ER  -