Collins, B. (2005). The trouble with poetry and other poems. Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCollins, Billy. The Trouble with Poetry and Other Poems. New York: Random House, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCollins, Billy. The Trouble with Poetry and Other Poems. Random House, 2005.
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