00313nam a2200145Ia 450000500170000000800410001702000100005804100120006808200130008010000180009324500310011125000080014226000090015065000080015920230824143354.0180829s9999||||ii |||||||||||||| ||eng|| a12099 aEnglish a511.5 HF aHarary, Frank 0aGraph theorycFrank Harary a1st c2001 aNUL