APA (7th ed.) Citation

Valacich, J. S., George, J. F., & Hoffer, J. A. (2009). Essentials of systems analysis and design (4th ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Valacich, Joseph S., Joey F. George, and Jeffrey A. Hoffer. Essentials of Systems Analysis and Design. 4th ed. Upper Saddle River, N.J: Prentice Hall, 2009.

MLA (9th ed.) Citation

Valacich, Joseph S., et al. Essentials of Systems Analysis and Design. 4th ed. Prentice Hall, 2009.