APA (7th ed.) Citation

Valacich, J. S., George, J. F., & Hoffer, J. A. (2015). Essentials of systems analysis and design (Sixth edition.). Pearson.

Chicago Style (17th ed.) Citation

Valacich, Joseph S., Joey F. George, and Jeffrey A. Hoffer. Essentials of Systems Analysis and Design. Sixth edition. England: Pearson, 2015.

MLA (9th ed.) Citation

Valacich, Joseph S., et al. Essentials of Systems Analysis and Design. Sixth edition. Pearson, 2015.