TY  - RPRT
TI  - Geologic mapping in Alaska: U.S. Geological Survey, post-1930, scales 1:96,000 to 1:250,000
AU  - Susan B. Bartsch-Winkler
PY  - 1977
DO  - 10.3133/ofr77681
UR  - https://pubs.usgs.gov/publication/ofr77681
ID  - ofr77681
ER  -