BBC Wales, Thomas, H., Hawes, K., Stoppard, E., & Scarborough, A. (2012). Upstairs, downstairs. Distributed by Warner Home Video.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBBC Wales, Heidi Thomas, Keeley Hawes, Ed Stoppard, और Adrian Scarborough. Upstairs, Downstairs. Burbank, CA: Distributed by Warner Home Video, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBBC Wales, et al. Upstairs, Downstairs. Distributed by Warner Home Video, 2012.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.