Gray, Pamela A. <br/><br/>
Open Systems 

 - London:  McGraw-Hill  1991 
 - xii, 263p.:  ill.;24cm. 
<br/><br/> includes bibliographic references and index 
<br/><br/><label>ISBN: </label>0 07 707244 8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data interchange
<br/><br/><label>Dewey Class. No.: </label>658.05 GRA