000
00236 a2200097 4500
001
23110
100
_a
Pettil, J M
245
_a
Electronic Switching, Timing, and Pulse Circuits
260
_a
_b
McGraw-Hill
_c
1959
090
_c
15651
_d
15651
942
_a
NUST-CAE
_c
M
_c
6282
999
_c
258183
_d
258183