000 00269nam a2200097Ia 4500
008 220122s9999||||xx |||||||||||||| ||und||
245 4 _aThe world of science
_bThe classical scientists,No.15
260 _aNew Delhi
_bS Chand and Company
_c2001
300 _a124p.
942 _cBK
999 _c2863
_d2863