Hallberg, R. v. Poetry, politics, and intellectuals: Robert von Hallberg. Poetry and criticism, 1940 - 1995.(1996).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHallberg, Robert von. "Poetry, Politics, and Intellectuals: Robert Von Hallberg." Poetry and Criticism, 1940 - 1995.(1996) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रHallberg, Robert von. "Poetry, Politics, and Intellectuals: Robert Von Hallberg." Poetry and Criticism, 1940 - 1995.(1996), .
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