TY  - BOOK
AU  - Corbett,James P.
TI  - Topological principles in cartography
T2  - Technical paper - Bureau of the Census ; 48
PY  - 1980///
CY  - [Washington, D.C.]
PB  - U.S. Dept. of Commerce, Bureau of the Census
KW  - Mathematical geography
KW  - Combinatorial topology
KW  - Cartography
KW  - Data processing
ER  -