000 00294nam a2200109Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aKhanna M L&Amp;Khanna Ajay&Amp;
 Khanna Atul
245 0 _aObjective Mathematics
260 _bJaiprakashnath&Co:
_c1998
300 _a775p
942 _cREF
999 _c36321
_d36321