Day, Peter Russell. <br/><br/>
Communication in social work 

 - Oxford :  Pergamon,  1972 
 - 121 p. 
<br/><br/><label>LCCN: </label>71953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comunicación de masas.
<br/><br/><label>Dewey Class. No.: </label>301.24  / D3