Não informado. (1979). Cement, Concrete and Aggregates. American Society for Testing and Materials.
Chicago (17e ed.) BronvermeldingNão informado. Cement, Concrete and Aggregates. Philadelphia, Pa: American Society for Testing and Materials, 1979.
MLA (8e ed.) BronvermeldingNão informado. Cement, Concrete and Aggregates. American Society for Testing and Materials, 1979.
Let op: Deze citaties zijn niet altijd 100% accuraat.