APA (7th ed.) Citation

Morley, D., & Parker, C. S.. (2010). Understanding computers: Today and tomorrow (12th ed, 2009 ed.). Course Technology.

Chicago Style (17th ed.) Citation

Morley, Deborah, and Charles S. Parker. Understanding Computers: Today and Tomorrow. 12th ed, 2009 ed. Boston, Massachusetts: Course Technology, 2010.

MLA (9th ed.) Citation

Morley, Deborah, and Charles S. Parker. Understanding Computers: Today and Tomorrow. 12th ed, 2009 ed. Course Technology, 2010.