APA Citatie

Edwards, C., & Ward, J. (1996). The essence of information systems (2nd ed.). Prentice hall of India.

Chicago Style citaat

Edwards, Chris, en John Ward. The Essence of Information Systems. 2nd ed. New Delhi: Prentice hall of India, 1996.

MLA citatie

Edwards, Chris, en John Ward. The Essence of Information Systems. 2nd ed. Prentice hall of India, 1996.