http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Introduction -- A short history of the NGL business -- The science and engineering of the upstream -- The chemistry and physics of NGLs -- Gas plants -- Refineries and the unnatural gas liquids -- Logistics -- NGL markets--petrochemicals -- NGL markets - fuels -- Safety, maintenance, and operations -- Profiles in NGL enterprise.
Includes bibliographical references and index.