TY  - RPRT
TI  - Animations for petroleum systems; 36 short MPEG movies
AU  - D. G. Howell
AU  - J.P. Swinchatt
AU  - J.F. Vigil
PY  - 1999
DO  - 10.3133/ofr9921
UR  - https://pubs.usgs.gov/publication/ofr9921
ID  - ofr9921
ER  -