TY  - BOOK
ED  - British Standards Institution
TI  - Testing aggregates
SN  - 0580188515
PY  - 1990///
CY  - London
PB  - BSI
KW  - Aggregates (Building materials)
KW  - Testing
KW  - Standards
N1  - 'British Standard, BS 812 - 109 : 1990'--Cover
ER  -