British Broadcasting Corporation, Armitage, R., Firth, P., Norris, H., & Raison, M. (2011). MI-5. British Broadcasting Corporation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBritish Broadcasting Corporation, Richard Armitage, Peter Firth, Hermione Norris, और Miranda Raison. MI-5. [United States]: British Broadcasting Corporation, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBritish Broadcasting Corporation, et al. MI-5. British Broadcasting Corporation, 2011.
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