TY  - BOOK
AU  - B S I
AU  - 
TI  - UDC 66 Glass and allied industries ceramics,
 clay and allied industries gypsum lime cement and allied industries BS 1000(666): 1971
SN  - 580068412
U1  - 025.43 UDC/BSI/12 
PY  - 1971///
CY  - London
PB  - B S I
ER  -