Ditzion, S. H. (1947). Arsenals of a democratic culture: A social history of the American public library movement in New England and the middle states from 1850 to 1900. American Library Association.
Lua i Stíl Chicago (17ú heag.)Ditzion, Sidney Herbert. Arsenals of a Democratic Culture: A Social History of the American Public Library Movement in New England and the Middle States from 1850 to 1900. Chicago: American Library Association, 1947.
Lua MLA (9ú heag.)Ditzion, Sidney Herbert. Arsenals of a Democratic Culture: A Social History of the American Public Library Movement in New England and the Middle States from 1850 to 1900. American Library Association, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.