00400nam a2200157Ia 4500008004100000020000900041035001000050082002200060100004100082245003800123250000600161260005300167300000800220500000800228650000600236210723s9999||||xx |||||||||||||| ||und||  aNULL  a25075  a512.86BBAU / CHA  aBaumslag, Benjamin / Chandler, Bruce 0aTheory & Problems Of Group Theory  a-  aNew YorkbMcGraw Hill International Book Company  a279  a150  a-