000
00270nam a2200109Ia 4500
008
220201s1997 xx 000 0 eng d
100
_a
Gopal, M
245
0
_a
Control system: principle & design
260
_b
Delhi: Tata McGraw Hill
_c
1997
300
_a
999
942
_2
ddc
999
_c
86903
_d
86903