APA (7th ed.) Citation

Walsh. (1985). Understanding computers: What managers and users need to know (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

Walsh. Understanding Computers: What Managers and Users Need to Know. 2nd ed. New York: Wiley, 1985.

MLA (8th ed.) Citation

Walsh. Understanding Computers: What Managers and Users Need to Know. 2nd ed. Wiley, 1985.