Open systems interconnection handbook / 
Gary R. McClain [editor]. 
 - New York :  Intertext Publications :  McGraw-Hill,  c1991. 
 - xix, 393 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0070449694 
<br/><br/><label>LCCN: </label>90085587  
<br/><br/><label>LC Class. No.: </label>TK5105.5  / .O638 1991 
<br/><br/><label>Dewey Class. No.: </label>004.6