Essentials of Systems Analysis and Design/ 
Joseph S. Valacich, Joey F. George, Jeffrey A. Hoffer. 
 - 6th edition 
 - Upper Saddle River, N.J. :  Prentice Hall,  2015 
 - xxvii, 460 pages : color illustrations ;   28 cm 
<br/><br/><label>ISBN: </label>9781292076614 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System design.<br/>System analysis.
<br/><br/><label>Dewey Class. No.: </label>004.21