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 "Liberatore, Eugene K. and United States. Wright Air Development Division",Convertible aircraft,,"U.S. Dept. of Commerce, Business and Defense Services Administration Office of Technical Services",1954,Rotary wing aircraft handbooks and history,,,,https://cir.nii.ac.jp/crid/1130282269866552960