Não informado. (1979). Cement, Concrete and Aggregates. American Society for Testing and Materials.
Chicago-referens (17:e uppl.)Não informado. Cement, Concrete and Aggregates. Philadelphia, Pa: American Society for Testing and Materials, 1979.
MLA-referens (8:e uppl.)Não informado. Cement, Concrete and Aggregates. American Society for Testing and Materials, 1979.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.