Joynt, C. B., & Nadel, G. H. (1965). Studies in the philosophy of history: Selected essays from History and theory (First Harper Torchbook edition.). Harper & Row, Publishers, Incorporated.
Lua i Stíl Chicago (17ú heag.)Joynt, Carey B., agus George H. Nadel. Studies in the Philosophy of History: Selected Essays from History and Theory. First Harper Torchbook edition. New York, N.Y: Harper & Row, Publishers, Incorporated, 1965.
Lua MLA (9ú heag.)Joynt, Carey B., agus George H. Nadel. Studies in the Philosophy of History: Selected Essays from History and Theory. First Harper Torchbook edition. Harper & Row, Publishers, Incorporated, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.