(1936). Vol. 8, № 4; Industrial and Engineering Chemistry. Analytical edition. 1936.
Chicago (17e ed.) BronvermeldingVol. 8, № 4; Industrial and Engineering Chemistry. Analytical Edition. 1936, 1936.
MLA (9e ed.) BronvermeldingVol. 8, № 4; Industrial and Engineering Chemistry. Analytical Edition. 1936, 1936.
Let op: Deze citaties zijn niet altijd 100% accuraat.