The Heawood map-coloring problem, cases 3, 5, 6, and 9 /

Bibliographic Details

Main Author:	Youngs, John William Theodore, 1910-
Corporate Author:	Rand Corporation
Format:	Book
Language:	English
Published:	Santa Monica, Calif. : Rand Corporation, [1969]
Series:	Memorandum (Rand Corporation) ; RM-5994/2-PR.
Subjects:	Graph theory. Topological imbeddings. Map-coloring problem.