00310nam a2200121Ia 4500008004100000082001500041100002100056245003500077260004200112300001000154942000700164999001700171190709s9999    xx            000 0 und d  a512.82 B64  aBorofsky, Samuel 0aElementary theory of equations  aNew yorkbThe macmillan companyc1964  ax,302  cBK  c40462d40462