APA (7th ed.) Citation

Edelhart, M., & Davies, O. (1983). Omni online database directory. Macmillan ; Collier Macmillan.

Chicago Style (17th ed.) Citation

Edelhart, Mike, and Owen Davies. Omni Online Database Directory. New York : London: Macmillan ; Collier Macmillan, 1983.

MLA (9th ed.) Citation

Edelhart, Mike, and Owen Davies. Omni Online Database Directory. Macmillan ; Collier Macmillan, 1983.