Four-Color Problem
Ore, Oystein
Four-Color Problem Oystein Ore - - New York Academic Press 1967 - xv,259p. - Pure and Applied Mathematics: A Series of Monographs and Textbooks .
Mathematics
517.5 / ORE
Four-Color Problem Oystein Ore - - New York Academic Press 1967 - xv,259p. - Pure and Applied Mathematics: A Series of Monographs and Textbooks .
Mathematics
517.5 / ORE