United States air transportation system; routes certified to trunkline carriers, December 31, 1970.

United States air transportation system; routes certified to trunkline carriers, December 31, 1970.

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Bibliographic Details
Corporate author / creator:	United States. Civil Aeronautics Board. Office of Facilities and Operations.
Imprint:	[Washington : The Board, 1970]
Description:	map on sheet 44 x 56 cm.
Language:	English
Subject:	Airlines -- United States -- Maps. Airways -- United States -- Maps. Airlines. Airways. United States. Maps.
Cartographic data:	Scale [ca. 1:9,000,000].
Format:	Map U.S. Federal Government Document Print
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/6234405

Hidden Bibliographic Details
Notes:	Includes notes, and index of carriers.

Description
Item Description:	Includes notes, and index of carriers.
Physical Description:	Scale [ca. 1:9,000,000]. map on sheet 44 x 56 cm.