APA
Parrott R., Tveit E. & Tveit E.Onshore pig trap valve replaced at operating pressure using tetherless intelligent pressure isolation plugs. : .
Chicago
Parrott Ralph, Tveit Edd and Tveit Edd.Onshore pig trap valve replaced at operating pressure using tetherless intelligent pressure isolation plugs. : .
Harvard
Parrott R., Tveit E. and Tveit E.Onshore pig trap valve replaced at operating pressure using tetherless intelligent pressure isolation plugs. : .
MLA
Parrott Ralph, Tveit Edd and Tveit Edd.: . .
