000 00309nam a2200133Ia 4500
005 20260413100844.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aHSU HP
245 0 _aSignals & System
260 _bN Delhi Mcgrew hill
_c2013
300 _a1.5
942 _cGB
999 _c4924
_d4924