TY  - BOOK
AU  - Walker, Helen M
TI  - Mathematics essential for elementary statistics: A self teaching manual
U1  - 570.15195  WAL-M 
PY  - 1970///
CY  - Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi
KW  - Biometrics-- Biometry-- Biostatistics-- Statistical mathematics
ER  -