TY  - BOOK
AU  - NAGWIRE,DARD  J
AU  - GOOD CHILD,MICHAEL  F
TI  - GEOGRAPHICAL INFORMATION SYSTEMS: PRINCIPLES AND APPLICATIONS / 
U1  - 910.285 
PY  - 1993///
CY  - [S.N] : 
PB  - LONGMAN SINGAPORE PUBLISHERS ، 
KW  - GEOGRAPHIC INFORMATION SYSTEMS
ER  -