TY  - BOOK
AU  - Walford, Nigel 	
TI  - Practical statistics for geographers and earth scientists /			
SN  - 9780470849156
U1  - 519.5 WAL 
PY  - 2011///
CY  - United Kingdom : 
PB  - Wiley Blackwell ,	
N1  - Includes Index.
ER  -