Safety in air navigation : hearings, 80th Congress, 1st session.
Detalles de publicación: [Washington, D.C.], 1947.Descripción: 2 v. : ill., pl., mapTema(s):
Contenidos incompletos:
Pt. 1. On safety in air navigation, Jan. 22-31, 1947 -- pt. 2. Feb. 4-Mar. 4, 1947.
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Document for sale by the Superintendent of Documents, paper.
CRDP Program Historic Shelflist record.
Pt. 1. On safety in air navigation, Jan. 22-31, 1947 -- pt. 2. Feb. 4-Mar. 4, 1947.