Diethelm, Walter,  1913- <br/><br/>
Signet, signal, symbol =  Emblčme, signal, symbole = Signet, signal, symbol 
 Emblčme, signal, symbole  Signet, signal, symbol 

 - 3rd edition. 
 - Zurich :  ABC Edition,  1976. 
 - 226 páginas :  ilustraciones 
<br/><br/><label>ISBN: </label>3855040141 
<br/><br/><label>Encabezamiento--Tema: </label><br/>Signos y símbolos