APA (7th ed.) Citation

Carnival Films (Great Britain), PBS Distribution (Firm), Fellowes, J., Trubridge, L., Bonneville, H., Findlay, J. B., . . . Wilton, P. (2013). Downton Abbey (Deluxe limited ed. ; Original UK ed. ; Blu-ray ed.). PBS Distribution.

Chicago Style (17th ed.) Citation

Carnival Films (Great Britain), et al. Downton Abbey. Deluxe limited ed. ; Original UK ed. ; Blu-ray ed. [United States]: PBS Distribution, 2013.

MLA (8th ed.) Citation

Carnival Films (Great Britain), et al. Downton Abbey. Deluxe limited ed. ; Original UK ed. ; Blu-ray ed. PBS Distribution, 2013.

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