TY  - RPRT
TI  - The Late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States
AU  - William Aubrey Cobban
PY  - 1969
DO  - 10.3133/pp619
UR  - https://pubs.usgs.gov/publication/pp619
ID  - pp619
ER  -