Knauer, U. (2011). Algebraic graph theory: Morphisms, monoids, and matrices. De Gruyter.
芝加哥风格引文Knauer, U. Algebraic Graph Theory: Morphisms, Monoids, and Matrices. Berlin ; Boston: De Gruyter, 2011.
MLA引文Knauer, U. Algebraic Graph Theory: Morphisms, Monoids, and Matrices. De Gruyter, 2011.
警告：这些引文格式不一定是100％准确.