TY  - BOOK
ED  - American Concrete Institute
TI  - Guide for Use of Normal Weight Aggregates in Concrete 
U1  - 620.13602 
PY  - 1990///
CY  - Detroit : 
PB  - American Concrete Institute, 
KW  - Aggregates Buildin Materials Guidebook
KW  - Concrete Guidebook
N1  - NN
ER  -