TY  - RPRT
TI  - Callovian (Jurassic) ammonites from the United States and Alaska; Part 2. Alaska Peninsula and Cook Inlet regions
AU  - R. W. Imlay
PY  - 1953
DO  - 10.3133/pp249b
UR  - https://pubs.usgs.gov/publication/pp249B
ID  - pp249B
ER  -