TY  - BOOK
AU  - Dutton Geoffrey Ed.
TI  - Topological data structures for grographic information systems: V.3. Geographic information systems
U1  - 526.98 
PY  - 1978///
KW  - Cartography
KW  - Geography
KW  - Topology
KW  - Information systems
KW  - Surveying
KW  - topographic
ER  -