TY  - RPRT
TI  - Geologic map of the Salem 1 degree by 2 degrees Quadrangle, western Oregon
AU  - G. W. Walker
AU  - R.A. Duncan
PY  - 1989
DO  - 10.3133/i1893
UR  - https://pubs.usgs.gov/publication/i1893
ID  - i1893
ER  -