00294nam a2200133Ia 4500003000400000005001700004008004100021020001900062040001000081100001600091245002400107260002000131260000900151OSt20240409150358.0170524s9999    xx            000 0 und d  a978-8126554546  ciimtu  aKatiyar A K 0aEngineerind Physics  bLaxmi New Delhi  c2009