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 "Hawkins, C. C.",Continuous-current dynamos,"6th ed., rev. throughout and largely rewritten",Pitman,1923,The specialists' series,,,,https://cir.nii.ac.jp/crid/1130282272004465920