Graphs, colourings, and the four-colour theorem
| Kaituhi matua: | |
|---|---|
| Hōputu: | Pukapuka |
| Reo: | Ingarihi |
| I whakaputaina: |
Oxford, New York
Oxford University Press
2002.
|
| Rangatū: | Oxford science publications.
|
| Ngā marau: |