000
00277nam a2200121Ia 4500
008
210901s9999 xx 000 0 eng d
082
_a
621.381 ROD
100
_a
D.Roddy
245
0
_a
Electronics communication
300
_a
786
650
_a
Engineering
942
_2
ddc
_c
BK
_0
2
999
_c
19273
_d
19273