TY  - BOOK
AU  - Silk,John
TI  - Statistical concepts in geography
SN  - 0-04-910066-1
U1  - 519 SIL 
PY  - 1979///
CY  - London
PB  - George Allen and Unwin
KW  - Geography - statistical methods
KW  - Geography -statistics
KW  - Probabilities
ER  -