APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Morley, Deborah, and Charles S. Parker. Understanding Computers: Today and Tomorrow. 12th ed. Australia ; United States: Course Technology/Cengage Learning, 2009.

MLA (9th ed.) Citation

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