000 00254nam a2200097Ia 4500
008 190719s9999 xx 000 0 und d
100 _aSatinder Bal Gupta
245 0 _aDiscrete mathematics & Structures
260 _aN.D.
_bLaxmi Pub.
_c2006
942 _cBK
999 _c12803
_d12803