U.S. Dept. of Commerce, Domestic and International Business Administration, Bureau of International Commerce, Office of International Marketing : for sale by the Supt. of Docs., U.S. Govt. Print. Off.1975.<DL445-8>
prepared by Trade Development, Office of AerospaceU.S. Dept. of Commerce, International Trade Administration : For sale by the Supt. of Docs., U.S. G.P.O.1986
prepared by the U.S. Civil Aviation Manufacturing Industry Panel, Committee on Technology and International Economic and Trade Issues of the Office of the Foreign Secretary, National Academy of Engineering and the Commission on Engineering and Technical Systems, National Research Council ; Frederick Seitz, chairman ; Lowell W. Steele, rapporteurNational Academy Press1985