Valacich, J. S., George, J. F., & Hoffer, J. A. (2015). Essentials of systems analysis and design (sixth edition, global edition.). Pearson Education Limited.
Chicago Style (17th ed.) CitationValacich, Joseph S., Joey F. George, and Jeffrey A. Hoffer. Essentials of Systems Analysis and Design. sixth edition, global edition. Harlow, Essex: Pearson Education Limited, 2015.
MLA (9th ed.) CitationValacich, Joseph S., et al. Essentials of Systems Analysis and Design. sixth edition, global edition. Pearson Education Limited, 2015.
Warning: These citations may not always be 100% accurate.