00515nam a2200193Ia 450000500170000000800410001702000150005804000190007304100120009208200130010410000190011724500750013626000310021130000140024250400190025665000160027570000200029185000100031120240606104521.0131103s9999    xx            000 0 und d  a1853960748  aLoreto College  aEnglish  a510bHAY  aHaylock, Derek  aUnderstanding early years MathematicscDerek Haylock and Anne Cockburn  aLondonbPaul Chapmanc1989  aix,127p.   aIncludes index  aMathematics  aCockburn, Anne   aLCBED