000 00447nam a2200169Ia 4500
020 _a0070543828
082 _a514.22
_bSAF
100 _aSaaty, Thomas L.
_9203057
245 _aThe four color problem
_b: assaults and conquest
260 _aNew York:
_bMcGraw-Hill,
_c1977.
300 _b217p.
500 _aIncludes index
546 _aeng
650 _aFour color problem
_9203058
700 _aKainen, Paul C.(jt. auth)
_9203059
942 _cBK
999 _c20538
_d20538