Retrieved 28 March 2018. :: UnióndeNacionesSuramericanas :: UNASUR ::. TRATADO CONSTITUTIVO DE LA UNIÓNDENACIONESSURAMERICANAS Archived 25 October 2011...
Constitutive Treaty of the Union of South American Nations, Article 23 "Tratado Constitutivo de la UnióndeNacionesSuramericanas" (PDF). Archived from the...