TY  - RPRT
TI  - Principal unconformities in Triassic and Jurassic rocks, western interior United States - A preliminary survey
AU  - G. N. Pipiringos
AU  - Robert Brett O'Sullivan
PY  - 1978
DO  - 10.3133/pp1035a
UR  - https://pubs.usgs.gov/publication/pp1035A
ID  - pp1035A
ER  -