Four-coolor problem: Assaults and conquest
Saaty, Thomas L
Four-coolor problem: Assaults and conquest - New YOrk McGraw-Hill 1977 - x, 217 p.
514.22 S12F
Four-coolor problem: Assaults and conquest - New YOrk McGraw-Hill 1977 - x, 217 p.
514.22 S12F