APA (7th ed.) Citation

Duffy, T., & Berchelmann, T. (1995). Computing concepts (2nd ed.). Wadsworth Pub. Co.

Chicago Style (17th ed.) Citation

Duffy, Tim, and Traci Berchelmann. Computing Concepts. 2nd ed. Belmont, Calif: Wadsworth Pub. Co, 1995.

MLA (9th ed.) Citation

Duffy, Tim, and Traci Berchelmann. Computing Concepts. 2nd ed. Wadsworth Pub. Co, 1995.