TY  - RPRT
TI  - Petrographic study of sandstone of the Inyan Kara group (Cretaceous) and associated rocks in the Black Hills, Wyoming and South Dakota
AU  - Richard E. Bergenback
AU  - Wayne A. Chisholm
AU  - William Jameson Mapel
PY  - 1957
DO  - 10.3133/tei685
UR  - https://pubs.usgs.gov/publication/tei685
ID  - tei685
ER  -