Não informado. (1960). History and Theory: Studies in the filosophy of history. Wesleyan University Press.
Lua i Stíl Chicago (17ú heag.)Não informado. History and Theory: Studies in the Filosophy of History. Middletown, Conn: Wesleyan University Press, 1960.
Lua MLA (8ú heag.)Não informado. History and Theory: Studies in the Filosophy of History. Wesleyan University Press, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.