prefazione in other languages

• English
  

• Arabic
  

• Belarusian
  

• Bulgarian
  

• Catalan
  

• Chinese
  

• Mandarin
  

• Czech
  

• Finnish
  

• French
  

• German
  

• Greek
  

• Hungarian
  

• Ido
  

• Japanese
  

• Korean
  

• Latin
  

• Macedonian
  

• Manchu
  

• Maori
  

• Norman
  

• Persian
  

• Polish
  

• Portuguese
  

• Romanian
  

• Russian
  

• Scottish gaelic
  

• Serbo-Croatian
  

• Cyrillic
  

• Roman
  

• Slovak
  

• Slovene
  

• Swedish
  

• Tagalog
  

• Telugu
  

• Ukrainian
  

• Vietnamese
  

• Yiddish