00330nam a2200109Ia 450000500170000000800410001710000210005824501000007926000170017930000110019665000130020720260326235446.0260326s9999||||xx |||||||||||||| ||und||  aDreyfuss, Henry  0aSymbol SourceBook :b An Authoritative Guide to International Graphic Symbols /cHenry Dreyfuss  bMcGraw Hill   a292 p.  aSIMBOLOS