Cash, J., Muldoon, P., & Cash, J. C. (2016). Forever words: The unknown poems. Blue Rider Press, an imprint of Penguin Random house LLC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCash, Johnny, Paul Muldoon, और John Carter Cash. Forever Words: The Unknown Poems. New York: Blue Rider Press, an imprint of Penguin Random house LLC, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCash, Johnny, et al. Forever Words: The Unknown Poems. Blue Rider Press, an imprint of Penguin Random house LLC, 2016.
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