Gessford, John Evans. <br/><br/>
Modern information systems :  designed for decision support / 
by John Evans Gessford. 
 - Reading, Mass. :  Addison-Wesley,  1980. 
 - xii, 512 p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0201030993 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Data processing.