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Britain's imperial air routes 1918 to 1939 : the story of Britain's overseas airlines
Higham, Robin, (1960)
Air transport policy and national security. A political, economic, and military analysis
Thayer, Frederick C., (1965)
The road towards a European Common air market : civil aviation European integration
Verploeg, Elias Alexander Gijsbertus, (1963)
Roots of British air policy
Worcester, Richard, (1966)