by Oystein Ore
Hardcover
ISBN: 978-0-12-528150-8
ISBN-10: 0-12-528150-1
Academic Press · 1967
|
|
by Oystein OreHardcover
ISBN: 978-0-12-528150-8 ISBN-10: 0-12-528150-1 Academic Press · 1967 |
| See also (possibly by other authors): | ||
| 1986 | Paperback | The Four-Color Problem |