UDC Auxiliary signs and subdivision (except those of place) BS 1000: Auxiliaries : 1974
BSI
UDC Auxiliary signs and subdivision (except those of place) BS 1000: Auxiliaries : 1974 by BSI - London B S I 1974
058008373X
025.43 UDC/BSI/21
UDC Auxiliary signs and subdivision (except those of place) BS 1000: Auxiliaries : 1974 by BSI - London B S I 1974
058008373X
025.43 UDC/BSI/21