TY  - RPRT
TI  - Stratigraphy of the Niobrara Formation at Pueblo, Colorado
AU  - G. R. Scott
AU  - W. A. Cobban
PY  - 1964
DO  - 10.3133/pp454l
UR  - https://pubs.usgs.gov/publication/pp454L
ID  - pp454L
ER  -