TY  - BOOK
AU  - Walker,Helen Mary
AU  - Lev,Joseph
TI  - Statistical inference / 
AV  - QA276 .W298
U1  - 311.2 
PY  - 1953///]
CY  - New York : 
PB  - Holt, 
KW  - Mathematical statistics
KW  - Population
KW  - Statistics
ER  -