TY  - RPRT
TI  - Depositional controls, distribution, and effectiveness of world's petroleum source rocks
AU  - Gregory F. Ulmishek
AU  - H. Douglas Klemme
PY  - 1990
DO  - 10.3133/b1931
UR  - https://pubs.usgs.gov/publication/b1931
ID  - b1931
ER  -