00346    a2200133   4500020001500000082001300015100002200028245002300050260005000073300001600123650001600139650003600155700002100191  a0669034177  a510bRUC  aRucker, Walter E.  aHealth mathematics  aTorontobD. C. Health and Companyc1981g1979  a380p.c26cm  aMathematics  aNatural science and mathematics  aDilley, Clyde A.