WILLIAMSON, J. A. (1965). Great Britain and the Commonwealth (3rd ed.). Adam and Charles Black.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWILLIAMSON, James A. Great Britain and the Commonwealth. 3rd ed. London: Adam and Charles Black, 1965.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWILLIAMSON, James A. Great Britain and the Commonwealth. 3rd ed. Adam and Charles Black, 1965.
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