TY  - BOOK
AU  - HEYWOOD,Ian
AU  - CORNELIUS,Sarah
AU  - CARVER,Steve
TI  - An introduction to geographical information systems
SN  - 9780273722595 (pbk.)
PY  - 2011///
CY  - Harlow, Essex
PB  - Pearson Education
KW  - Geographical information systems
N1  - Includes bibliographical references and index
ER  -