APA (7th ed.) Citation

Covington, M., & Downing, D. (1989). Dictionary of computer terms (2nd ed.). Barron's.

Chicago Style (17th ed.) Citation

Covington, Michael, and Douglas Downing. Dictionary of Computer Terms. 2nd ed. New York: Barron's, 1989.

MLA (9th ed.) Citation

Covington, Michael, and Douglas Downing. Dictionary of Computer Terms. 2nd ed. Barron's, 1989.