TY  - RPRT
TI  - Geologic mapping in Alaska, U.S. Geological Survey, post-1930, scales 1:20,000 to 1:63,360
AU  - Susan B. Bartsch-Winkler
PY  - 1978
DO  - 10.3133/ofr78677
UR  - https://pubs.usgs.gov/publication/ofr78677
ID  - ofr78677
ER  -