Bureau of Mines / Minerals yearbook metals, minerals, and fuels 1975
Year 1954, Volume 1 (1975)
Clarke, Thomas G.; Fanelli, Leonard L.
Natural gas liquids, pp. 971-994
As a work of the United States government, this material is in the public domain.| For information on re-use see: http://digital.library.wisc.edu/1711.dl/Copyright