| 000 | 00455nam a2200169Ia 4500 | ||
|---|---|---|---|
| 082 |
_a511.5 _bAp646.EP |
||
| 100 | _aAppel, Kenneth and Haken, Wolfgang | ||
| 245 |
_aEvery planar map is four colorable _b |
||
| 260 |
_aProvidence _bAmerican Mathematical Society _c1989 |
||
| 300 | _axv, 741p. | ||
| 490 |
_aContemporary Mathematics _v 98 |
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| 500 | _a | ||
| 690 | _a | ||
| 700 | _aHaken, Wolfgang ; jt. auth. | ||
| 964 |
_a _b _c _d _e _f _g |
||
| 921 | _a8858 | ||
| 999 |
_c8858 _d8858 |
||