%0 Journal Article %T A description of the Parry-Sullivan number of a graph using circuits %A Chris Smith %J Mathematics %D 2009 %I arXiv %X In this short note, we give a description of the Parry-Sullivan number of a graph in terms of the cycles in the graph. This tool is occasionally useful in reasoning about the Parry-Sullivan numbers of graphs. %U http://arxiv.org/abs/0903.2000v1