00297nam a2200121Ia 450000500170000000800410001704100080005808200170006610000250008324500200010826000380012830000090016620260720174553.0260720s2004    xx            000 0 und d  aeng  a371.333 KHAS  aKhan, Sharif Mohamed  aSchool teaching  aNew DelhibA P H Publishingc2004  a108p