00296nam a2200121Ia 450000500170000000800410001704100080005808200160006610000220008224500200010426000420012430000080016620260720174645.0260720s2006    xx            000 0 und d  aeng  a370.78 KUMO  aKumar, J Prasanth  aOpen university  aNew DelhibDiscovery Publishersc2006  a90p