00492    a2200181   4500020001500000082001300015100002000028245002600048260005700074300001600131650003700147650001600184700001800200700002400218700002300242700002000265700002500285  a0021085234  a510bMAT  aHoffer, Alan R.  aMathematics in action  aNew YorkbMcGraw-hill Publishing Companyc1991g1991  a640p.c30cm  aNatural sciences and mathematics  aMathematics  aThoburn, Tina  aLodholz, Richard D.  aJohnson, Martin L.  aMusser, Gary L.  aLeinwand, Steven J.