00353nam a22001337a 450000500170000000800410001704100080005808200150006610000180008124500660009926000300016552100080019565000160020320260803145129.0260803b        |||||||| |||| 00| 0 eng d  aeng  a512.896 SG  aG. Stephenson  aAn Introduction to Matrices, Sets and Groups /cG. Stephenson  aLondon :bLongman,c1974.  aAll  aMathematics