APA (7th ed.) Citation

Society for Visual Education. (1985). Chronology of the western world, 400-1000 AD. The Society.

Chicago Style (17th ed.) Citation

Society for Visual Education. Chronology of the Western World, 400-1000 AD. Chicago, IL: The Society, 1985.

MLA (9th ed.) Citation

Society for Visual Education. Chronology of the Western World, 400-1000 AD. The Society, 1985.