000 00324nam a2200133Ia 4500
005 20260720174537.0
008 260720s2004 xx 000 0 und d
041 _aeng
082 _a500.7 RAOS
100 _aRao, V K
_9267902
245 _aScience Education
260 _aNew Delhi
_bA P H Publishing
_c2004
300 _a234p
999 _c241980
_d241980