TY  - BOOK
AU  - Gunston,Mike
ED  - Great Britain.
TI  - Geographic information systems: a buyer's guide 
SN  - 0113306067 (pbk.)
U1  - 910.202 22
PY  - 1993///
CY  - London
PB  - HMSO
KW  - Geographic information systems
N1  - On title page: CCTA; Includes bibliographical references and index
ER  -