APA (7th ed.) Citation

British Broadcasting Corporation. Television Service, Time-Life Television, & Hughes, R. (1980). The Threshold of liberty. Time-Life Video.

Chicago Style (17th ed.) Citation

British Broadcasting Corporation. Television Service, Time-Life Television, and Robert Hughes. The Threshold of Liberty. New York: Time-Life Video, 1980.

MLA (9th ed.) Citation

British Broadcasting Corporation. Television Service, et al. The Threshold of Liberty. Time-Life Video, 1980.