TY  - BOOK
TI  - ASTM STANDARS:  ANNUAL BOOK OF 1980
U1  - 620.0044 
PY  - 1980///
CY  - Estados Unidos
PB  - AMERICAN SOCIETY FOR TESTING  AND MATERIALS
KW  - AGREGADOS MINERALES
KW  - CONCRETO
KW  - NORMAS
ER  -