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 Open University. Materials under Stress Course Team,The stability of cracks,,Open University Press,1976,Technology : a third level course,,"0335061524,0335061532",,https://cir.nii.ac.jp/crid/1130000797531624832