000
00271nam a2200121Ia 4500
008
220201s2004 xx 000 0 eng d
082
_a
4.25
_b
NII
100
_a
NIIT
245
0
_a
Programmable logic control
260
_a
Delhi
_b
PHI
_c
2004
300
_a
219
942
_2
ddc
999
_c
37040
_d
37040