TY  - BOOK
ED  - American Society for Testing and Materials.
TI  - Annual book of ASTM standards. Sec. 4. Construction: v. 04.01. Cement, lime, gypsum
U1  - C 620.11 
PY  - 1984///
CY  - Philadelphia, PA
PB  - American Society for Testing and Materials, 
KW  - HORMIGON
KW  - NORMAS
ER  -