TY  - RPRT
TI  - SCRNDIGW; a Windows screen digitizing program (an image quantitating tool)
AU  - Philip S. Powers
PY  - 1994
DO  - 10.3133/ofr94697a
UR  - https://pubs.usgs.gov/publication/ofr94697A
ID  - ofr94697A
ER  -