Public Relations:  A VALUE-DRIVEN APPROACH/ 
David W. Guth & Charles Marsh. 
 - 3rd edition. 
 - Boston,New York.:  Pearson Allyn & Bacon,  c2007. 
 - xix,652 p.:  ill.;  23 cm. 
<br/><br/><label>ISBN: </label>0205495389 
<br/><br/><label>LC Class. No.: </label>HM1221  / .G87 2007