APA (7th ed.) Citation

Society for Visual Education & Erdoes, R. (1984). Chronology of the world: 400-1000 A.D. Society for Visual Education, Inc.

Chicago Style (17th ed.) Citation

Society for Visual Education and Richard Erdoes. Chronology of the World: 400-1000 A.D. Chicago: Society for Visual Education, Inc, 1984.

MLA (9th ed.) Citation

Society for Visual Education and Richard Erdoes. Chronology of the World: 400-1000 A.D. Society for Visual Education, Inc, 1984.