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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Geographic Entertainment (Firm), Ridley Scott, Tony Scott, और Kevin Macdonald. Life in a Day. New York, N.Y. : [United States: Virgil Films ; National Geographic Entertainment], 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNational Geographic Entertainment (Firm), et al. Life in a Day. Virgil Films ; National Geographic Entertainment], 2011.
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