Não informado. (1960). History and Theory: Studies in the filosophy of history. Wesleyan University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. History and Theory: Studies in the Filosophy of History. Middletown, Conn: Wesleyan University Press, 1960.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. History and Theory: Studies in the Filosophy of History. Wesleyan University Press, 1960.
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