Não informado. (1951). Mechanical Engineering Report. National Research Council, Division of Mechanical Engineering.
Citação do estilo Chicago (17ª ed.)Não informado. Mechanical Engineering Report. Ottawa: National Research Council, Division of Mechanical Engineering, 1951.
Citação MLA (8ª ed.)Não informado. Mechanical Engineering Report. National Research Council, Division of Mechanical Engineering, 1951.
警告：這些引文格式不一定是100％准確.