01714oam 2200457 450 991069006160332120190215102143.0(CKB)5470000002334646(OCoLC)974489587(OCoLC)995470000002334646(EXLCZ)99547000000233464620170302d1990 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierAn Enhanced digital line graph design a feature-based data model for digital spatial data bases that represent geographic phenomenon /Stephen C. Guptill, editor ; Kenneth J. Boyko [and four others], contributing authors[Reston, Virginia] :Department of the Interior, U.S. Geological Survey,1990.[Washington] :United States Government Printing Office,1990.1 online resource (1 volume (various pagings) illustrationsU.S. Geological Survey circular ;1048"A feature-based data model for digital spatial data bases that represent geographic phenomenon."Includes bibliographical references (pages 18-20).Enhanced digital line graph design Digital mappingDigital mappingfastDigital mapping.Digital mapping.Guptill Stephen C.Boyko Kenneth J.Geological Survey (U.S.),OCLCEOCLCEOCLCAOCLCQGPOBOOK9910690061603321An Enhanced digital line graph design3439660UNINA