00308nam a2200121Ia 4500008004100000082001300041100002300054245003300077260004100110300001100151942000700162999001700169190709s9999    xx            000 0 und d  a517 OS3I  aOsgood, William F. 0aIntroduction to the calculus  aNew yorkbThe mcmillan companyc1954  axi,449  cBK  c37610d37610