Barker, R. S., & Barker, R. (1994). Politics, peoples and government: Themes in British political thought since the nineteenth century. Macmillan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarker, Rodney S., और Rodney Barker. Politics, Peoples and Government: Themes in British Political Thought Since the Nineteenth Century. Macmillan, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBarker, Rodney S., और Rodney Barker. Politics, Peoples and Government: Themes in British Political Thought Since the Nineteenth Century. Macmillan, 1994.
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