CIVILI E MILITARI DEL MONDO
ARNOLDO MONDADORI EDITORE 1984
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Westland C29 "autogiro" from La Cierva experimantal model 1934 (GB)
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Focke Achgelis Fa 61 1936 (GER)
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Sikorski S61 (SH-3A) 1960 (USA)
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Westland "Wessex" 1962 (GB)
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SA-321F "Super Frelon" 1968 (FRA)
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Agusta A-109 1977 (ITA)
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Mil Mi-26 1980 (URSS)
