Robbins, W. G. (1994). Colony and empire: The capitalist transformation of the American West. University Press of Kansas.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRobbins, William G. Colony and Empire: The Capitalist Transformation of the American West. Lawrence, Kan.: University Press of Kansas, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRobbins, William G. Colony and Empire: The Capitalist Transformation of the American West. University Press of Kansas, 1994.
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