00486nam a2200169Ia 450000500170000000800410001704000190005804100120007708200130008910000170010224500990011926000390021830000170025765000150027470000170028985000100030620240605095449.0131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a511bBRI  aBrideoake, E  aArithmetic in actionb a practical approach to infant number work cE Brideoake and I D Groves  aLondonbUniversity of Londonc1950  a128p.b pic.  aArithmetic  aGroves, I D   aLCBED