APA (7th ed.) Citation

(1981). Worldwide videotex update. Worldwide Videotex.

Chicago Style (17th ed.) Citation

Worldwide Videotex Update. Boston, MA: Worldwide Videotex, 1981.

MLA (9th ed.) Citation

Worldwide Videotex Update. Worldwide Videotex, 1981.

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