Não informado. (1976). Plastics and Rubber. Plastics and Rubber Institute.
Chicago (17e ed.) BronvermeldingNão informado. Plastics and Rubber. Stevenage, Inglaterra: Plastics and Rubber Institute, 1976.
MLA (8e ed.) BronvermeldingNão informado. Plastics and Rubber. Plastics and Rubber Institute, 1976.
Let op: Deze citaties zijn niet altijd 100% accuraat.