00352nam a22001337a 450000500170000000800410001702000150005804100080007308200180008110000200009924500410011926000480016030000100020820260721103639.0260721b        |||||||| |||| 00| 0 eng d  a0720422841  aeng  a511.32bMUL/S  aMuller, Gert H.  aSets And Classesc/by Gert H. Muller  aNew York:bNorth-Holland Publishing;c1976.  a358p.