00298nam a2200121Ia 450000500170000000800410001704100080005808200160006610000150008224500220009726000480011930000090016720260720174529.0260720s2005    xx            000 0 und d  aeng  a370.71 SINT  aSingh, U K  aTeacher education  aNew DelhibDiscovery Publishing Housec2005  a295p