000 00542nam a22001937a 4500
003 OSt
005 20151202153737.0
008 130307t xxu||||| |||| 00| 0 eng d
020 _a9780141009087
050 _aQA 612.19
_b.W746 2002
082 _aIB 511.5
_bW69 2002
100 _aWilson, Robin
245 _aFour colors suffice :
_bhow the map problem was solved /
_cRobin Wilson.
260 _aPrinceton, NJ
_bPrinceton University Press
_c2002
300 _a262 p.
_bill.
_c21 cm.
562 _e1
942 _2lcc
_cBK
999 _c2157
_d2157