TY  - BOOK
AU  - BSI
TI  - UDC Auxiliary signs and subdivision (except those of place) BS 1000: Auxiliaries : 1974
SN  - 058008373X
U1  - 025.43 UDC/BSI/21 
PY  - 1974///
CY  - London
PB  - B S I
ER  -