APA (7th ed.) Citation

National Film Theatre (London, England), British Film Institute, & National Film Archive (Great Britain). (1968). National Film Theatre. [British Film Institute].

Chicago Style (17th ed.) Citation

National Film Theatre (London, England), British Film Institute, and National Film Archive (Great Britain). National Film Theatre. [London, England]: [British Film Institute], 1968.

MLA (9th ed.) Citation

National Film Theatre (London, England), et al. National Film Theatre. [British Film Institute], 1968.