00377    a2200145   4500020001500000082001300015100002200028245002300050260005000073300001800123650003600141650001600177700001700193700002100210  a0669041610  a510bRUC  aRucker, Walter E.  aHealth mathematics  aTorontobD. C. Health and Companyc1983g1983  av,442p.c24cm  aNatural science and mathematics  aMathematics  aLowry, David  aDilley, Clyde A.