http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Belowground storage of liquefied natural gas in prestressed concrete tanks
"Projects PB-35, PB-35a, PE-35a sponsored by the A.G.A. Gas Operations Research Committee and participating companies."
Institute of Gas Technology technical report ; no. 8