TY  - BOOK
AU  - Barnette, David.
TI  - Map coloring, polyhedra, and the four-color problem 
T2  - Dolciani Mathematical Expositions, 
SN  - 9781470457174 (online)
PY  - 1983///
CY  - [Washington, D.C.]
PB  - Mathematical Association of America
KW  - Four-color problem
KW  - Map-coloring problem
KW  - Polyhedra
N1  - Includes bibliographical references and index
UR  - https://doi.org/10.1090/dol/008
ER  -