APA Citation

 Valacich, J. S. (2015).  Essentials of systems analysis and design.  Pearson Educational Limited.

Chicago Style Citation

 Valacich, Joseph S.  Essentials of Systems Analysis and Design.  Pearson Educational Limited, 2015.

MLA Citation

 Valacich, Joseph S.  Essentials of Systems Analysis and Design.  Pearson Educational Limited, 2015.

Warning: These citations may not always be 100% accurate.