APA

United States, . (1947). Air safety: hearings before subcommittee, 80th Congress, 1st session, on S.3, to provide for training of air-traffic control-tower operators, S.4, authorizing advanced training in aeronautics of technical personnel of Civil Aeronautics Administration, and S.269, to create independent Air Safety Board, Jan. 28-Feb. 7, 1947. [Washington, D.C.]: .

Chicago

United States, . 1947. Air safety: hearings before subcommittee, 80th Congress, 1st session, on S.3, to provide for training of air-traffic control-tower operators, S.4, authorizing advanced training in aeronautics of technical personnel of Civil Aeronautics Administration, and S.269, to create independent Air Safety Board, Jan. 28-Feb. 7, 1947. [Washington, D.C.]: .

Harvard

United States, . (1947). Air safety: hearings before subcommittee, 80th Congress, 1st session, on S.3, to provide for training of air-traffic control-tower operators, S.4, authorizing advanced training in aeronautics of technical personnel of Civil Aeronautics Administration, and S.269, to create independent Air Safety Board, Jan. 28-Feb. 7, 1947. [Washington, D.C.]: .

MLA

United States, . Air safety: hearings before subcommittee, 80th Congress, 1st session, on S.3, to provide for training of air-traffic control-tower operators, S.4, authorizing advanced training in aeronautics of technical personnel of Civil Aeronautics Administration, and S.269, to create independent Air Safety Board, Jan. 28-Feb. 7, 1947. [Washington, D.C.]: . 1947.