APA (7th ed.) Citation

Haag, S., & Cummings, M. (2009). Information systems essentials (Third edition.). McGraw-Hill/Irwin.

Chicago Style (17th ed.) Citation

Haag, Stephen, and Maeve Cummings. Information Systems Essentials. Third edition. New York: McGraw-Hill/Irwin, 2009.

MLA (9th ed.) Citation

Haag, Stephen, and Maeve Cummings. Information Systems Essentials. Third edition. McGraw-Hill/Irwin, 2009.