 | United States - 1951 - 938 páginas
[ O conteúdo desta página está restrito ] | |
 | Stuart Daggett - 1941 - 948 páginas
[ O conteúdo desta página está restrito ] | |
 | 1950 - 666 páginas
[ O conteúdo desta página está restrito ] | |
 | 1935 - 910 páginas
[ O conteúdo desta página está restrito ] | |
 | United States. Congress. House. Committee on Interstate and Foreign Commerce - 1938 - 488 páginas
...interest, and the public convenience and necessity, respectively, to require, among other things — (a) The encouragement and development of an air transportation...and domestic commerce of the United States, of the Postal Service, and of the national defense; (b) The regulation of air transportation in such manner... | |
| |
... (a) The encouragement and development of an air transportation system properly adapted to the present and future needs of the foreign and domestic commerce of the United States, of the Postal Service, and of the national defense... 
