APA (7th ed.) Citation

Shelly, G. B., Cashman, T. J., & Groen, J. L. (2001). Essential introduction to computers and how to purchase, install, and maintain a personal computer (4th ed.). Course Technology.

Chicago Style (17th ed.) Citation

Shelly, Gary B., Thomas J. Cashman, and Jodi L. Groen. Essential Introduction to Computers and How to Purchase, Install, and Maintain a Personal Computer. 4th ed. Boston, MA: Course Technology, 2001.

MLA (8th ed.) Citation

Shelly, Gary B., et al. Essential Introduction to Computers and How to Purchase, Install, and Maintain a Personal Computer. 4th ed. Course Technology, 2001.