00499nam a2200181Ia 450000500170000000800410001702000190005804000190007704100120009608200150010810000150012324500480013826000450018630000250023150400240025665000270028085000100030720240312085402.0131103s9999    xx            000 0 und d  aSBN: 340118458  aLoreto College  aEnglish  a371.3bLEW  aLewis,D.G.  aStatistical methods in educationcD.G.Lewis  aLondonbUniversity Of London Pressc1967  a198 p.b illus.,fig.  a2nd impression 1969  aMethods of Instruction  aLCLIB