Não informado. (1915). New Technical Books. New York Public Library.
Chicago (17e ed.) BronvermeldingNão informado. New Technical Books. New York: New York Public Library, 1915.
MLA (8e ed.) BronvermeldingNão informado. New Technical Books. New York Public Library, 1915.
Let op: Deze citaties zijn niet altijd 100% accuraat.