TY  - RPRT
TI  - Photogeologic map of the lower Koyukuk Cretaceous basin, west-central Alaska
AU  - John T. Cass
PY  - 1955
DO  - 10.3133/ofr5526
UR  - https://pubs.usgs.gov/publication/ofr5526
ID  - ofr5526
ER  -