000 00308nam a2200121Ia 4500
008 221001s1971 xx 000 0 eng d
082 _a330.1 DUV (H)
100 _aDuvte, Keval Krishna
245 0 _aAadhunik aarthik siddhant
260 _aNew Delhi
_bS. Chand
_c1971
300 _axv ,1087p.
942 _2ddc
_cBK
999 _c2894
_d2894