TY  - BOOK
AU  - Howarth,R.F.
TI  - A-level revision in statistics: (Mathematics) 
U1  - 519.5076 
PY  - 1987///?]
CY  - Merseyside, England
PB  - Richard Ball Pub.
KW  - Mathematical statistics
KW  - Problems, exercises, etc
ER  -