Graph colouringsde Roy G. Nelson, Robin J. WilsonMateriasGraph theoryCongressesFour-color problemGraph coloringEdiciones (1)Graph colourings (1990)Longman Scientific & Technical · inglésMás obras de Roy G. NelsonBobby Hull's hockey made easyBBobby Hull's Hockey Made EasyBobby Hull's Hockey Made EasyVer todas las obras de Roy G. Nelson →