著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL University of Texas at Austin. Petroleum Extension Service and Association of Drilled Shaft Contractors (U.S.),Vessel inspection and maintenance,,"Petroleum Extension Service, University of Texas at Austin",1977,Rotary drilling,,0886980747,,https://cir.nii.ac.jp/crid/1130000795159989888