TY  - BOOK
AU  - Ferguson,George A.
TI  - Statistical analysis in psychology and education
U1  - 519 FER  
PY  - 1959///.
CY  - New York : 
PB  - Mc Graw-Hill, 
KW  - Correlation
KW  - Education - statistical methods
KW  - Psychology-statistical method
ER  -