http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Study of feasibility of basing natural gas pipeline operating pressure on hydrostatic test pressure
A.R. Duffy [and others] ; Battelle Memorial Institute, Columbus Laboratories.
Supervised by the NG-18 Line Pipe Supervising Committee of the Pipeline Research Committee of the American Gas Association.