Standard Specification for Loadbearing Concrete Masonry Units
MLA
ASTM International. Standard Specification for Loadbearing Concrete Masonry Units. West Conshohocken, PA ASTM International
APA
ASTM International. (0). Standard Specification for Loadbearing Concrete Masonry Units. West Conshohocken, PA ASTM International.
Chicago
ASTM International. Standard Specification for Loadbearing Concrete Masonry Units. West Conshohocken, PA ASTM International