By Aspaas Helen Ruth   Lavin Stephen J.   in Cartography and Geographic Information Science

ISSN:1545-0465|16|4|257-268

Cartography and Geographic Information Society‎(1989)‎

Access to resources Favorite 12.376491

By Lavin Stephen J.   Cerveny Randall S.   in The Cartographic Journal

ISSN:1743-2774|24|2|131-141

Maney Publishing‎(1987)‎

Access to resources Favorite 11.32373