Wallis, W D.
Beginners guide to graph theory /
By W D Wallis.
- 2nd ed.
- Boston : Birkhauser , 2011.
- xix,260p. ; 22 cm.
9788184898064
Graphical representation of a road network
Grapphical representation of a football competition
Petersen graph
511.5 / WALW