McDowell, F. P. W. Psychology and Theme in Brother to Dragons: Frederick P. W. McDowell. Robert Penn Warren's "Brother to Dragons" : a discussion.(1983).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcDowell, Frederick P. W. "Psychology and Theme in Brother to Dragons: Frederick P. W. McDowell." Robert Penn Warren's "Brother to Dragons" : A Discussion.(1983) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcDowell, Frederick P. W. "Psychology and Theme in Brother to Dragons: Frederick P. W. McDowell." Robert Penn Warren's "Brother to Dragons" : A Discussion.(1983), .
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