Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
511.5 Sa112 101081
Saaty Thomas L Four-color problem : assaults and conquest NY McGraw Hill International 1977 ix,217 0-07-054382-8 * Algebra Four-color problem * Kainen Paul C, Auth. * Title