00285nam a2200121Ia 450000500170000000800410001704100080005808200130006610000190007924500370009826000200013530000080015520260720174717.0260720s1997    xx            000 0 und d  aeng  a510 MALE  aMalik Sushmita  aExploring mathematics-1 workbook  aNew Delhic1997  a88p