Salute,

Io ha trovate plure libros original re interlingua del annos
1950-1960 a comprar in le sito de libros antique "bibliofind.com":

http://www.bibliofind.com/cgi-bin/texis.exe/s/search/search.html?dealerid=&qauthor=&qtitle=&qcomments=interlingua&minp=&maxp=&daysback=at+any+date&SUBMIT1=SEARCH

Copiar & collar iste longe addresse in le campo de adresse de tu
navigator de web. Io non recommenda essayar typar isto ;-)

Alternativemente, vade a bibliofind.com, e cerca "Any other word(s):
interlingua".

- Martijn