00409nam a2200145Ia 4500008004100000082001800041100002800059245003200087260004800119300000800167650001600175650001800191653002800209700002600237170901s1969    xx            000 0 und d  a519.532bE43S  aElderton, William Palin 0aSystems of Frequency Curves  aCambridgebCambridge University Pressc1969  a216  aMathematics  aPure Sciences  aFrequency distributions  aJohnson, Norman Lloyd