HeinOnline index title: Federal Constitution of the Swiss Confederation, 1999/2000, amending laws, Amending laws of 2000-2009, Referendum of 27 September 2009 [re: Arts. 139, 139a, 140, 156, 189]
[Bern] : Chancellerie fédérale, 2009.
[Getzville, NY] : William S. Hein & Company, 
1 online resource (pages 6409-6412).
World constitutions illustrated.
Text also available in German and Italian.
Source of Description
Description based on PDF title page, viewed November 11, 2014.