Edit. Kurt Levy, R. S. a. L. B. (1980). Camões and his times. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEdit. Kurt Levy, Ricardo Sternberg and Laura Bulger. Camões and His Times. [s.n.], 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEdit. Kurt Levy, Ricardo Sternberg and Laura Bulger. Camões and His Times. [s.n.], 1980.
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