APA (7th ed.) Citation

Hoover, R. E. (1984). Executive's guide to online information services. Knowledge Industry Publications.

Chicago Style (17th ed.) Citation

Hoover, Ryan E. Executive's Guide to Online Information Services. White Plains, N.Y.: Knowledge Industry Publications, 1984.

MLA (9th ed.) Citation

Hoover, Ryan E. Executive's Guide to Online Information Services. Knowledge Industry Publications, 1984.