000 00330nam a2200145Ia 4500
008 230913s9999 xx 000 0 und d
082 _a511.6 sin
100 _aSingh, S.B.
245 0 _aCombinatorics And Graphtheory
260 _aNEW DELHI
260 _bKHANNA
260 _c2002
300 _a540
650 _aMathematics
999 _c139723
_d139723