Graphs, groups and surfaces /
White, Arthur T.
Graphs, groups and surfaces / Arthur T. White. - new york : American Elsevier 1973.
TEORIA DE GRAFOS.
TEORIA DE GRUPO
TOPOLOGIA COMBINATORIA.
Graphs, groups and surfaces / Arthur T. White. - new york : American Elsevier 1973.
TEORIA DE GRAFOS.
TEORIA DE GRUPO
TOPOLOGIA COMBINATORIA.