↑ Switzerland Constitution, article 70, "Languages": (1) The official languages of the Federation are German, French, and Italian. Romansh is an official language for communicating with persons of Romansh language. (2) The Cantons designate their official languages. In order to preserve harmony between linguistic communities, they respect the traditional territorial distribution of languages, and take into account the indigenous linguistic minorities.
↑ Swiss Federal Statistical Office. "Languages and religions - Data, indicators". สืบค้นเมื่อ 2007-10-09. The first number refers to the share of languages within total population. The second refers to the Swiss citizens only.
