TY  - RPRT
TI  - Preliminary report on the petrography of the Upper Jurassic Morrison Formation from four surface sections, southwestern San Juan Basin, McKinley County, New Mexico
AU  - B.A. Steele
PY  - 1985
DO  - 10.3133/ofr84780
UR  - https://pubs.usgs.gov/publication/ofr84780
ID  - ofr84780
ER  -