TY  - BOOK
ED  - National Research Council (U.S.).
TI  - Grading of concrete aggregates: 10 reports prepared for the 52nd annual meeting 
SN  - 0309021723
PY  - 1973///
CY  - Washington
PB  - Highway Research Board
KW  - Concrete
KW  - Aggregates (Building materials)
ER  -