League of Nations. Economic Intelligence Service. Annuaire statistique de la Société des Nations: Statistical year-book of the League of Nations.
Lua i Stíl Chicago (17ú heag.)League of Nations. Economic Intelligence Service. Annuaire Statistique De La Société Des Nations: Statistical Year-book of the League of Nations. Genève.
Lua MLA (8ú heag.)League of Nations. Economic Intelligence Service. Annuaire Statistique De La Société Des Nations: Statistical Year-book of the League of Nations.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.