000 00254nam a2200109Ia 4500
008 230901s9999 xx 000 0 eng d
100 _aWest (Rougles B)
245 0 _aIntroducation to Graph Theroy
250 _a1
260 _bPHI
942 _2ddc
_cSCIENCE
999 _c19274
_d19274