Thực đơn
Kellett Autogiro CorporationThực đơn
Kellett Autogiro CorporationLiên quan
Tài liệu tham khảo
WikiPedia: Kellett Autogiro Corporation http://www.flightglobal.com/pdfarchive/view/1956/1... http://www.flightglobal.com/pdfarchive/view/1958/1...