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008 260111s9999||||xx |||||||||||||| ||und||
020 _a8121938465
082 _a510 D623M
100 _aH.K Dass
245 0 _aMathematics
260 _aNew Delhi
_bS.chand
_c2013
300 _a446p.
942 _cBK
999 _c235284
_d235284