00413nam a2200157   450000500170000000800040001702000150002104000090003605000220004510000130006724500750008026000460015530000250020165000160022670000130024220150608151104.0000  a0719541549  aUOEL  aQA39.2b.C69 1985  aCox J.C.  aUnderstanding Mathematics 1bTeachers Manual /cby  C.J. Cox & D. Bell  aLondon ;bJohn Murray Publisher ,cc1985.  axv, 149 p. :bill. ;  aMathematics  aBell, D.