American Concrete Institute. (1980). Standard practice for selecting proportions for structural lightweight concrete (ACI 211.2-81). ACI.
Chicago Style (17th ed.) CitationAmerican Concrete Institute. Standard Practice for Selecting Proportions for Structural Lightweight Concrete (ACI 211.2-81). Detroit, Mich: ACI, 1980.
MLA (9th ed.) CitationAmerican Concrete Institute. Standard Practice for Selecting Proportions for Structural Lightweight Concrete (ACI 211.2-81). ACI, 1980.
Warning: These citations may not always be 100% accurate.