Barker, E. (1928). National character and the factors in its formation: By Ernest Barker (2nd ed.). Methuen.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarker, Ernest. National Character and the Factors in Its Formation: By Ernest Barker. 2nd ed. London: Methuen, 1928.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBarker, Ernest. National Character and the Factors in Its Formation: By Ernest Barker. 2nd ed. Methuen, 1928.
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