Não informado. (1973). International Journal of Mechanical Engineering Education. Institution of Mechanical Engineers.
Citação do estilo Chicago (17ª ed.)Não informado. International Journal of Mechanical Engineering Education. London: Institution of Mechanical Engineers, 1973.
Citação MLA (8ª ed.)Não informado. International Journal of Mechanical Engineering Education. Institution of Mechanical Engineers, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.