000 00230nam a2200109Ia 4500
020 _a8120321421
082 _a511.5
100 _aDOUGLAS, B.WEST
245 _aINTRODUCTION TO GRAPH THEORY
260 _aPHI
_b PHI
_c2001
942 _cBK
999 _c2753
_d2753