Não informado. (1976). Phosphorus and sulfur and the related elements. Gordon and Breach.
Chicago (17e ed.) BronvermeldingNão informado. Phosphorus and Sulfur and the Related Elements. New York: Gordon and Breach, 1976.
MLA (8e ed.) BronvermeldingNão informado. Phosphorus and Sulfur and the Related Elements. Gordon and Breach, 1976.
Let op: Deze citaties zijn niet altijd 100% accuraat.