00309nam a2200133Ia 4500008004100000041000800041082001300049100002400062245003400086260002600120300001000146563000700156650001200163210707s1972    xx            000 0 und d  aeng  a512 WHIP  aWHITESITT (J Eldon)  aPrinciples of modern algebra.  aLondonbAddisonc1972  a262 p  aPB  aAlgebra