000 00416nam a2200145Ia 4500
008 220718s2014||||xx |||||||||||||| ||und||
020 _a9780691158228
082 _a511.6
_bWIL
100 1 _aWilson, R
245 1 _aFour colors suffice
_bhow the map problem was solved
_cR. Wilson
260 _aPrinceton
_bPrinceton University Press
_c2014
300 _axii
_e199
490 _aPrinceton science library
942 _cBK
999 _c22127
_d22127