000 00256nam a2200109Ia 4500
008 220201s2020 xx 000 0 eng d
100 _aMEHER S P
245 0 _aCONTROL SYSTEMS
260 _aDELHI
_bS K KATARIA AND SONS
_c2020
300 _a218
942 _2ddc
999 _c94141
_d94141