00720nam0-22002651i-450-990001134650403321000113465FED01000113465(Aleph)000113465FED0100011346520000920d198----km-y0itay50------baengDesign theoryby Beth T.JungnickelLenz;Mannheim [etc.]ZurichBibliographisches Institut198Beth,Thomas54469Jungnickel,DieterLenz,HanfriedITUNINARICAUNIMARCBK990001134650403321113-B-522245MA1MA1Design theory345342UNINAING01