Workers' Defense League. Workers defense bulletin: Official monthly organ of the Workers Defense League. The League.
Lua i Stíl Chicago (17ú heag.)Workers' Defense League. Workers Defense Bulletin: Official Monthly Organ of the Workers Defense League. New York: The League.
Lua MLA (8ú heag.)Workers' Defense League. Workers Defense Bulletin: Official Monthly Organ of the Workers Defense League. The League.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.