"Whitten, J.L." <br/><br/>
Systems analysis and design methods/ 
J.L.Whitten 
 - Toronto:  "Times mirror,"  1986 
 - 845p. 
<br/><br/><label>ISBN: </label>0-8016-5464-5 
<br/><br/><label>Subjects--Index Terms: </label>systems analysis 
<br/><br/><label>Dewey Class. No.: </label>3  / WHI