000 00265nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aA.K.Bhunia & L.Sahoo
245 0 _aAdvance Operation earch
250 _a1st
260 _aN.D.
_bAsian Books
_c2011
942 _cBK
999 _c14301
_d14301