TY  - BOOK
AU  - Hayslett,T.H.
TI  - Statistics make simple
AV  - H425s . 1971
U1  - 519.5 
PY  - 1971///
CY  - London
PB  - W. H. Allen
KW  - Sampling (
KW  - Statistics)
KW  - Statistics
ER  -