of or relating to theory in other languages

• English
  

• Asturian
  

• Belarusian
  

• Catalan
  

• Czech
  

• Dutch
  

• Esperanto
  

• Faroese
  

• Finnish
  

• French
  

• Galician
  

• German
  

• Greek
  

• Hindi
  

• Hungarian
  

• Ido
  

• Irish
  

• Latin
  

• Macedonian
  

• Norwegian
  

• Bokmål
  

• Nynorsk
  

• Persian
  

• Polish
  

• Portuguese
  

• Romanian
  

• Russian
  

• Serbo-Croatian
  

• Slovene
  

• Swedish
  

• Turkish
  

• Ukrainian
  

• Urdu
  

• Volapük