00540nam a2200169Ia 450000500170000000800460001703700120006304000200007504100130009508400190010810000350012724500340016226000440019630000130024049000450025354600720029820250508161715.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a510, PHIqFEDL  aPhillips Jo Mckeeby and others 0aDeveloping mathematics.  Four  aLondon, UKbThe Macmillan Companyc1971  axi,380p.  aThe Macmillan school mathematics program  aJt. Authors:Tina Thoburn, Walter J. Sanders, J. Franklin Fitzgerald