TY  - BOOK
ED  - United States.
TI  - Safety in air navigation: hearings, 80th Congress, 1st session
PY  - 1947///
CY  - [Washington, D.C.]
KW  - Aeronautics
KW  - Safety measures
KW  - Aeronautics, Commercial
KW  - United States
N1  - 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
ER  -