000 00267nam a2200109Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aKhanna M L&Amp; Sharma J N
245 0 _aIit Mathematics
260 _bJaiprakash Nath &co
_c1998
300 _a1390p
942 _cREF
999 _c36525
_d36525