TY  - BOOK
ED  - American Society for Testing and Materials
TI  - 1998 Annual book of ASTM standards. Section 4 : : Construction, 
SN  - 0803125232
PY  - 1998///
CY  - West Conshohocken, Pensilvania
PB  - ASTM
KW  - MATERIALES
KW  - NORMAS ASTM
KW  - CONCRETE
KW  - AGGREGATES
KW  - CONCRETO
KW  - AGREGADOS-CONSTRUCCION
ER  -