TY  - BOOK
AU  - Burrough A Peter 
AU  -  McDonnell A Rachael
TI  - Principles of Geographical Information Systems
SN  - 9780199228621
U1  - 910.285 BUR 
PY  - 2014///
CY  - New Delhi
PB  - oxfoed university press
KW  -  Burrough A Peter and McDonnell A Rachael
KW  -  information
KW  - geographical
KW  - principles
ER  -