Carr, E. (1972). What is history? The George Macaulay: Trevelyan lectures delivered in the University of Cambridge: January-March 1961. Penguin Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCarr, E.H. What Is History? The George Macaulay: Trevelyan Lectures Delivered in the University of Cambridge: January-March 1961. Penguin Books, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCarr, E.H. What Is History? The George Macaulay: Trevelyan Lectures Delivered in the University of Cambridge: January-March 1961. Penguin Books, 1972.
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