Webb, S., & Webb, B. (1965). The history of trade unionism ([Rev. ed.].). Kelley.
Lua i Stíl Chicago (17ú heag.)Webb, Sidney, agus Beatrice Webb. The History of Trade Unionism. [Rev. ed.]. New York: Kelley, 1965.
Lua MLA (8ú heag.)Webb, Sidney, agus Beatrice Webb. The History of Trade Unionism. [Rev. ed.]. Kelley, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.