Spivack. With Robert Lowell and His Circle. Northeastern University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpivack. With Robert Lowell and His Circle. Northeastern University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSpivack. With Robert Lowell and His Circle. Northeastern University Press.
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