00316nam a2200121Ia 4500008004100000082001500041100001900056245004200075260004200117300001100159942000700170999001700177190709s9999    xx            000 0 und d  a512.82 W43  aWeisner, Louis 0aintroduction to theTheory Of Equation  aNew yorkbThe macmillan companyc1938  aix,188  cBK  c39187d39188