TY  - BOOK
AU  - IAN HEYWOOD
AU  - SARAH CORNELIUS
AU  - STEVE CARVER
TI  - AN INTRODUCTION TO GEOGRAPHICAL INFORMATION SYSTEMS
U1  - MRP  911 HEY - I 
PY  - 2009///
PB  - PEARSON EDUCATION
KW  - AN INTRODUCTION TO GEOGRAPHICAL INFORMATION SYSTEMS  IAN HEYWOOD  SARAH CORNELIUS STEVE CARVER
ER  -