Não informado. 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.
Citação MLA (8ª ed.)Não informado. Mechanical Engineering Report. National Research Council, Division of Mechanical Engineering.
警告：这些引文格式不一定是100％准确.