The four-color problem
Subtitle: assaults and conquest
By: Thomas L. Saaty and Paul C. Kainen.
Contributors: Kainen, Paul C.
Publisher: Dover Publications
Published: 1986
Place of publication: New York
Language: eng
Number of pages: 217
Subjects: Four-color problem.
Other titles: 4 color-problem.
Notes: Bibliography: p. 197-211.
Includes index.