Stratford, Alan H..
Air Transport Economics in the Supersonic Era / - Second Ed. / - London : Macmillan Press Ltd. , 1985 - p505 :
Economics
X43`N6 / K7S,L3
Air Transport Economics in the Supersonic Era / - Second Ed. / - London : Macmillan Press Ltd. , 1985 - p505 :
Economics
X43`N6 / K7S,L3