000 00343nam a22001577a 4500
003 OSt
020 _a9789382609407
100 _aSingh S B
245 _aDiscrete Stuctures
250 _a3
260 _aNew Delhi
_bKhanna Publishing Co
_c2017
300 _a658
440 _aDiscrete Stuctures
650 _aMathematics
942 _2ddc
_cBK
999 _c825496
_d825496