000
00251nam a22001097a 4500
082
_a
004 SIE'U
100
_a
SIEGEL, P
_9
56807
245
_a
UNDERSTANDING DIGITAL COMPUTERS
260
_a
NEWYORK
_b
JOHN WILEY
_c
1961
300
_a
403P
942
_c
BK
_2
ddc
999
_c
567147
_d
567147