TY  - GEN
AU  - Ian Heywood
ED  - Sarah Cornelius
TI  - Introduction to Geographical Information Systems
PY  - 2011///
CY  - New Delhi
PB  - Pearson
KW  -  
UR  - https://ebookcentral.proquest.com/lib/gzsptuc/detail.action?docID=5138011&query=Introduction+to+Geographical+Information+Systems
ER  -