Haverty-Stacke, D. T. (2009). America's forgotten holiday: May Day and nationalism, 1867-1960. New York University Press.
Lua i Stíl Chicago (17ú heag.)Haverty-Stacke, Donna T. America's Forgotten Holiday: May Day and Nationalism, 1867-1960. New York ; London: New York University Press, 2009.
Lua MLA (9ú heag.)Haverty-Stacke, Donna T. America's Forgotten Holiday: May Day and Nationalism, 1867-1960. New York University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.