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Descriptive Specification Vought-Sikorsky Model S-43 Amphibion and Flying Boat
United Aircraft Corporation. Vought-Sikorsky Aircraft Division
出版Vought-Sikorsky Aircraft, Division of United Aircraft Corporation, 1939
URLhttp://books.google.com.hk/books?id=4pATHQAACAAJ&hl=&source=gbs_api