Socialist International. Summary of the Sixteenth Congress of the Socialist International. La Internacional.
Citazione stile Chigago Style (17a edizione)Socialist International. Summary of the Sixteenth Congress of the Socialist International. Albufeira: La Internacional.
Citatione MLA (9a ed.)Socialist International. Summary of the Sixteenth Congress of the Socialist International. La Internacional.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.