Shannon, D. A. (1967). The socialist party of America: A history. Quadrangle Books.
Lua i Stíl Chicago (17ú heag.)Shannon, David A. The Socialist Party of America: A History. Chicago: Quadrangle Books, 1967.
Lua MLA (8ú heag.)Shannon, David A. The Socialist Party of America: A History. Quadrangle Books, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.