000 00267nam a2200109Ia 4500
008 210324s1968 xx 000 0 und d
041 _aeng
082 _a540.2
100 _aNuffield Foundation
_91576734
245 _aBook of Data
260 _aLondon
_bLongmans
_c1968
999 _c1025302
_d1025302