Caplan, D. (2005). Questions of possibility: Contemporary poetry and poetic form. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCaplan, David. Questions of Possibility: Contemporary Poetry and Poetic Form. New York: Oxford University Press, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCaplan, David. Questions of Possibility: Contemporary Poetry and Poetic Form. Oxford University Press, 2005.
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