Kukla, J. (2003). A wilderness so immense: The Louisiana Purchase and the destiny of America. Alfred A. Knopf : Distributed by Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKukla, Jon. A Wilderness so Immense: The Louisiana Purchase and the Destiny of America. New York: Alfred A. Knopf : Distributed by Random House, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKukla, Jon. A Wilderness so Immense: The Louisiana Purchase and the Destiny of America. Alfred A. Knopf : Distributed by Random House, 2003.
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