The Heawood map--coloring problem
Subtitle: cases 1, 7, and 10.
Series: Rand Corporation. Research memorandum -- RM-5994/1-; Research memorandum (Rand Corporation) -- RM-5994/1-
Publisher: Rand Corporation
Published: 1969
Place of publication: Santa Monica, Calif
Language: eng
Subjects: Four-color problem.
Table of contents: value: [1] Cases 1, 7, and 10.; value: [2] Cases 3, 5, 6, and 9-