Paramount Vantage, Paramount Home Entertainment (Firm), Dibb, S., Knightley, K., Fiennes, R., Rampling, C., & Foreman, A. (2008). The duchess. Paramount Home Entertainment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रParamount Vantage, Paramount Home Entertainment (Firm), Saul Dibb, Keira Knightley, Ralph Fiennes, Charlotte Rampling, और Amanda Foreman. The Duchess. Hollywood, Calif.: Paramount Home Entertainment, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रParamount Vantage, et al. The Duchess. Paramount Home Entertainment, 2008.
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