Marden, O. S. (1901). Talks with great workers. T.Y. Crowell & co.
Lua i Stíl Chicago (17ú heag.)Marden, Orison Swett. Talks with Great Workers. New York: T.Y. Crowell & co, 1901.
Lua MLA (8ú heag.)Marden, Orison Swett. Talks with Great Workers. T.Y. Crowell & co, 1901.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.