TY  - BOOK
AU  - Wonnacott, T.H. and Wonnacott, R.J.
TI  - Introductory statistics
SN  - 0471615188
AV  - QA276.12.W6 1990 
PY  - 1990///
CY  - New York
PB  - John Willey & sons
KW  - Statistics
KW  - mathematical statistics
ER  -