TY  - RPRT
TI  - Early developments in petroleum geochemistry
AU  - J.M. Hunt
AU  - R. Paul Philp
AU  - Keith A. Kvenvolden
PY  - 2002
DO  - 10.1016/s0146-6380(02)00056-6
UR  - https://pubs.usgs.gov/publication/70208243
ID  - 70208243
ER  -