APA (7th ed.) Citation

Edwards, C., Ward, J., & Bytheway, A. (1995). The essence of information systems (2nd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Edwards, Chris, John Ward, and Andy Bytheway. The Essence of Information Systems. 2nd ed. London [etc.]: Prentice-Hall, 1995.

MLA (9th ed.) Citation

Edwards, Chris, et al. The Essence of Information Systems. 2nd ed. Prentice-Hall, 1995.