TY  - RPRT
TI  - The role of digital cartographic data in the geosciences
AU  - S.C. Guptill
PY  - 1983
DO  - 10.1016/0098-3004(83)90032-8
UR  - https://pubs.usgs.gov/publication/70011341
ID  - 70011341
ER  -