Bradfield, B. T. (1965). Sir Richard Vyvyan and tory politics, with special reference to the period 1825-46. University of London.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBradfield, Brian T. Sir Richard Vyvyan and Tory Politics, with Special Reference to the Period 1825-46. University of London, 1965.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBradfield, Brian T. Sir Richard Vyvyan and Tory Politics, with Special Reference to the Period 1825-46. University of London, 1965.
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