TY  - RPRT
TI  - GSDRAW and GSMAP version 4.0; prototype programs for the IBM PC and compatible microcomputers to assist compilation and publication of geologic maps and illustrations; A, documentation
AU  - G.I. Selner
AU  - R. B. Taylor
PY  - 1987
DO  - 10.3133/ofr87496a
UR  - https://pubs.usgs.gov/publication/ofr87496A
ID  - ofr87496A
ER  -