Regulations and standards for the protection of air navigation :
obstruction marking manual /
U.S. Department of Commerce, Civil Aeronautics Administration.
|Corporate Author:||United States.|
Washington, D.C. : Civil Aeronautics Administration, 1943.
Aids to air navigation
Aids to air navigation /
Airways > Airways / Lighting.
Air traffic rules > Air traffic rules / United States.
"August 1, 1943."
1 v. (various pagings) :
ill., map ;
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|Full view||University of Illinois at Urbana-Champaign|