000 00298nam a2200133Ia 4500
008 230321s9999 xx 000 0 und d
082 _bSIN
100 _aSingh, Gursharan
245 0 _aCombinatorics & Graph theory
250 _a
260 _bKhanna Book Pub
_c2004
300 _a657
942 _cBK
999 _c4974
_d4974