Wilson, Robin J. Graphs/ Robin J. Wilson, John J. Watkins. - Wiley, c1990. - x, 340 p.: "Based on the Open University course, Graphs, networks, and design". ISBN: 0471615544 : LCCN: gb 91048711 Nat. Bib. No.: GB91-48711 Dewey Class. No.: 511.5 / W752g