TY  - RPRT
TI  - GSDRAW and GSMAP system version 6.0 : graphics programs and utility programs for the IBM PC and compatible microcomputers, to assist compilation and publication of geologic maps and illustrations, Part A - Documentation and tutorial
AU  - Gary I. Selner
AU  - Richard B. Taylor
PY  - 1989
DO  - 10.3133/ofr89373a
UR  - https://pubs.usgs.gov/publication/ofr89373A
ID  - ofr89373A
ER  -