Blumenthal, L. Roy. <br/><br/>
The practice of public relations / 
by L. Roy Blumenthal. 
 - New York:  Macmillan,  1972. 
 - xvi, 278 p. ;   26 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public relations.