TY  - RPRT
TI  - Volume VI: Contributions to the fossil flora of the Western Territories, Part I: The Cretaceous flora
AU  - Ferdinand Vandeveer Hayden
AU  - Leo Lesquereux
PY  - 1874
DO  - 10.3133/70038956
UR  - https://pubs.usgs.gov/publication/70038956
ID  - 70038956
ER  -