TY  - RPRT
TI  - The fractionation of crude petroleum in capillary diffusion
AU  - J. Elliott Gilpin
AU  - Marshall P. Cram
AU  - David T. Day
PY  - 1908
DO  - 10.3133/b365
UR  - https://pubs.usgs.gov/publication/b365
ID  - b365
ER  -