Não informado. (1892). The Engineering Index. American Society of Mechanical Engineers.
Chicago-referens (17:e uppl.)Não informado. The Engineering Index. New York: American Society of Mechanical Engineers, 1892.
MLA-referens (8:e uppl.)Não informado. The Engineering Index. American Society of Mechanical Engineers, 1892.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.