APA (7th ed.) Citation

National Film Board of Canada. (1977). Strangers at the Door. National Film Board of Canada.

Chicago Style (17th ed.) Citation

National Film Board of Canada. Strangers at the Door. Montreal: National Film Board of Canada, 1977.

MLA (9th ed.) Citation

National Film Board of Canada. Strangers at the Door. National Film Board of Canada, 1977.

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