00258nam a2200097Ia 450000500170000000800410001710000320005824500270009026000340011730000090015120260413100623.0230516s9999||||xx |||||||||||||| ||und||  aTheraja B.L. & Theraja A.K. 0aATB of Electrical tech  b N Delhi Prencitce Hallc1995  a1144