Não informado. (1919). Mechanical Engineering. American Society of Mechanical Engineers.
Chicago (17e ed.) BronvermeldingNão informado. Mechanical Engineering. New York: American Society of Mechanical Engineers, 1919.
MLA (8e ed.) BronvermeldingNão informado. Mechanical Engineering. American Society of Mechanical Engineers, 1919.
Let op: Deze citaties zijn niet altijd 100% accuraat.