their development of aerodromes and hydromes at Baddeck, Nova Scotia Parkin, J. H. creator text ca Canada University of Toronto press c1964 1964 monographic eng

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xvi, 555 p. : ill. ; 23 cm. J. H. Parkin. Includes index. Bell, Alexander Graham 1847-1922 Baldwin, Frederick Walker 1882-1948 Aeronautics Research History 629.130092 PAB 1964 BD-RjUL 170329 20211209081722.0 67977 eng