00296    a2200121   4500020001500000082001300015100002300028245002400051260004600075300001600121650001600137700002100153  a0669034223  a510bRUC  aRucker, Walter E.   aHealth mathematics   aTorontobD. C. Health Companyc1981g1981  a380p.c26cm  aMathematics  aDilley, Clyde A.