TY  - BOOK
AU  - Erricker, B C
AU  - 
TI  - Elementary statistics
U1  - 519.2 
PY  - 1970///
CY  - London
PB  - Hodder and Stoughton
KW  - Statistics
KW  - Census
KW  - Probabilities
KW  - Calculus of probability
KW  - Statistical mathematics
ER  -