000 01865nam a2200445Ia 45e0
008 180816s2018 xx 000 0 und d
082 _a511.5
100 _aSingh, S. B
245 0 _aCombinatorics And Graph Theory
260 _bKHANNA BOOK PUB. DELHI
942 _2ddc
_cBK
999 _c1905
_d1905