Warren, R. P. (1983). Chief Joseph of the Nez Perce, who called themselves the Nimipu, "the real people": A poem. Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWarren, Robert Penn. Chief Joseph of the Nez Perce, Who Called Themselves the Nimipu, "the Real People": A Poem. New York: Random House, 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWarren, Robert Penn. Chief Joseph of the Nez Perce, Who Called Themselves the Nimipu, "the Real People": A Poem. Random House, 1983.
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