Barbash, J. (1961). Labor's grass roots: A study of the local union ([1st ed.].). Harper.
Lua i Stíl Chicago (17ú heag.)Barbash, Jack. Labor's Grass Roots: A Study of the Local Union. [1st ed.]. New York: Harper, 1961.
Lua MLA (9ú heag.)Barbash, Jack. Labor's Grass Roots: A Study of the Local Union. [1st ed.]. Harper, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.