Llewellyn Robert W <br/><br/>
Information systems 

 - Englewood  Prentice Hall        1976 
 - xiv,347p. illus  cm. 
<br/><br/><label>Standard No.: </label>132,764 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS
<br/><br/><label>Dewey Class. No.: </label>X:80bD65,8(B), L6