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:
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.

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