00298nam a2200121Ia 450000500170000000800410001704100080005808200160006610000240008224500230010626000380012930000090016720260720174553.0260720s2005    xx            000 0 und d  aeng  a370.71 SINT  aSingh, Yogish Kumar  aResearch education  aNew DelhibA P H Publishingc2005  a260p