APA (7th ed.) Citation

Carnival Films (Great Britain), McGovern, E., Bonneville, H., Logan, P., & Carmichael, L. (2016). Downton Abbey (Original UK edition.). PBS Distribution.

Chicago Style (17th ed.) Citation

Carnival Films (Great Britain), Elizabeth McGovern, Hugh Bonneville, Phyllis Logan, and Laura Carmichael. Downton Abbey. Original UK edition. [United States]: PBS Distribution, 2016.

MLA (8th ed.) Citation

Carnival Films (Great Britain), et al. Downton Abbey. Original UK edition. PBS Distribution, 2016.

Warning: These citations may not always be 100% accurate.