Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Spear, Roger and Peters, Geoff and Turner, Barry A and Open University",The Hixon analysis . Catastrophe and its preconditions,,Open University Press,1976,Technology : a third level course,,0335062512,,https://cir.nii.ac.jp/crid/1130000797225958656