00305nam a2200121Ia 450000500170000000800410001704100080005808200170006610000140008324500320009726000450012930000090017420260720174556.0260720s2004    xx            000 0 und d  aeng  a371.333 GEOM  aGeorge, A  aManual of practice teaching  aNew DelhibCommonwealth Publishersc2004  a326p