Johnston, R. (1982). Geography and the state: An essay in political geography. Macmillan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnston, R.J. Geography and the State: An Essay in Political Geography. Macmillan, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJohnston, R.J. Geography and the State: An Essay in Political Geography. Macmillan, 1982.
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