TY  - RPRT
TI  - On the petrographic distinction of bituminite from solid bitumen in immature to early mature source rocks
AU  - Paul C. Hackley
AU  - Brett J. Valentine
AU  - Javin J. Hatcherian
PY  - 2018
DO  - 10.1016/j.coal.2018.06.004
UR  - https://pubs.usgs.gov/publication/70219082
ID  - 70219082
ER  -