Four Colors Suffice; How the Map Problem Was Solved
by Robin Wilson
$30 · Offered by Bauer Rare Books
Princeton, NJ: Princeton University Press, 2014. Revised Color edition. 8vo. xii , 199 pp. Frontispiece. Illustrations. Softcover binding, very good condition. 123591 . Item #22641 With a new foreword by Ian Stewart. ––– Frontispiece portrait of Francis Guthrie, originator of the four-color problem.
- Binding: Softcover
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