Ritchie, L. David. <br/><br/>
Information / 
L. David Ritchie. 
 - Newbury Park, CA :  Sage Publications,  1991. 
 - vii, 75 p. :  ill. ;  23 cm. 
 - Communication concepts ;  vol.2 .
<br/><br/>Includes bibliographical references. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0803939043 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication.<br/>Information theory.