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217 pages. Book appears to have hardly been read and is in Fine condition throughout and is covered in a protective plastic. The only exception is a small inscription to the inside page. The Four Color Problem Is To Prove That Four Colors Are Sufficient To Color Any Map Drawn In The Plane Or On A Sphere So That No Two Adjacent Regions Are Colored The Same.
Title: The Four-Color Problem
Publisher: Dover Pubns
Publication Date: 1986
Binding: paperback
Condition: Very Good