ACI Committee 211 & American Concrete Institute. (1991). Standard practice for selecting proportions for normal, heavyweight and mass concrete. American Concrete Institute.
Citación estilo ChicagoACI Committee 211 and American Concrete Institute. Standard Practice for Selecting Proportions for Normal, Heavyweight and Mass Concrete. Farmington Hills, MI: American Concrete Institute, 1991.
Cita MLAACI Committee 211 and American Concrete Institute. Standard Practice for Selecting Proportions for Normal, Heavyweight and Mass Concrete. American Concrete Institute, 1991.
Warning: These citations may not always be 100% accurate.