000
00282nam a2200109Ia 4500
008
220201s1962 xx 000 0 eng d
100
_a
DEFRANCE JOSEPH J
245
0
_a
ELECTRON TUBES AND SEMICONDUCTORS
260
_a
U S
_b
PRENTICE HALL OF INDIA
_c
1962
300
_a
288
942
_2
ddc
999
_c
89326
_d
89326