TY  - BOOK
AU  -  Heywood, Ian.
TI  -  An introduction to geographical information systems
SN  -  0131293176
U1  -  910.285  22
PY  - 2006///
CY  -  Harlow
PB  -  Pearson Prentice Hall
KW  -  Geographic information systems
N1  -  Includes bibliographical references (p. 399-411) and index
ER  -