000
002530000a22001090004500
245
_a
An introduction to number scales and computers
100
_a
Budden, F.J.
260
_a
London
_b
Longmans
_c
1965
080
_a
518
_b
B8
041
_a
EN
942
_c
BK
999
_c
93022
_d
93022