A survey of scheduled local services air transport requirements of the State of Illinois
Subtitle: a cooperative statewide undertaking by 19 Illinois service-area communities and the Department of Aeronautics, State of Illinois.
Published: 1952
Place of publication: [Springfield ?
Language: eng
Number of pages: 122
Subjects: Aeronautics, Commercial -- Illinois.
Notes: Cover title.
At head of title: Before the Civil Aeronautics Board.