00454nam a2200145Ia 450000500170000000800410001704100080005808200150006610000320008124500220011326000430013530000090017899900190018795201020020620260720174820.0260720s2011    xx            000 0 und d  aeng  a530.7 KRIS  aV.Krishnamacharyalu9272424  aScience Education  aNew DelhibNeelkamal Publicationc2011  a356p  c246630d246630  001040708BEDaALbALd2026-07-20l0o530.7 KRISpBED05022r2026-07-20 17:48:20w2026-07-20yBK