Não informado. (1910). Technologic Papers of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards.
Chicago (17e ed.) BronvermeldingNão informado. Technologic Papers of the Bureau of Standards. Washington: U.S. Department of Commerce, National Bureau of Standards, 1910.
MLA (8e ed.) BronvermeldingNão informado. Technologic Papers of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards, 1910.
Let op: Deze citaties zijn niet altijd 100% accuraat.