00511nam a2200157Ia 4500008003900000035001700039082001900056245013600075250001100211260002900222300001100251650002600262650001400288650003600302650001500338770711t1993 st a c eng a(Sirsi) 277804a704.946 bS95s10aSymbol Signs :bthe complete study of passenger/pedestrian oriented symbols /cdeveloped by the American Institute of Graphic Arts. a2a ed. aNew York :bAIGA,c1993. a240 p. 4aComunicación visual 4aSeñales 4aSimbolismo en la comunicación 4aSímbolos