Niebuhr, R. (1943). The nature and destiny of man (1. print. 1943, reprint.). Nisbet.
Lua i Stíl Chicago (17ú heag.)Niebuhr, Reinhold. The Nature and Destiny of Man. 1. print. 1943, reprint. London: Nisbet, 1943.
Lua MLA (8ú heag.)Niebuhr, Reinhold. The Nature and Destiny of Man. 1. print. 1943, reprint. Nisbet, 1943.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.