000 00294nam a2200121Ia 4500
008 170101s1987 xx 000 0 und d
082 _a658.403 NOL
100 _aNolan Vincent.
245 0 _aProblem Solving
260 _bThe Sphere Mann Service
_c1987
300 _a90 p.
942 _2ddc
_cB
999 _c1018716
_d1018716