Map Coloring Polyhedra and the Four Color Problem by David Barnette
English | April 1984 | ISBN: 0883853094 | 175 pages | PDF | 52 MB
English | April 1984 | ISBN: 0883853094 | 175 pages | PDF | 52 MB
Map Coloring Polyhedra and the Four Color Problem - Dolciani Mathematical Expositions.