000 00331nam a2200133Ia 4500
008 210901s1965 xx 000 0 eng d
082 _a510 PEM
100 _aPemberton, John E.
245 0 _aHow to find out in mathematics
260 _aNew York
_bPergamon Press
_c1965
300 _a158
650 _aMathematics
942 _2ddc
_cBK
999 _c1119
_d1119