APA (7th ed.) Citation

Kruzas, A. T. E. o. i. s. a. s., & Lucas, A. (1989). Encyclopedia of information systems and services (9th ed.). Gale Research.

Chicago Style (17th ed.) Citation

Kruzas, Anthony Thomas. Encyclopedia of information systems and services, and Amy Lucas. Encyclopedia of Information Systems and Services. 9th ed. Detroit: Gale Research, 1989.

MLA (9th ed.) Citation

Kruzas, Anthony Thomas. Encyclopedia of information systems and services, and Amy Lucas. Encyclopedia of Information Systems and Services. 9th ed. Gale Research, 1989.