DeFleur, Melvin L. <br/><br/>Understanding Mass Communication Melvin L. DeFleur  - Boston  Houghton Mifflin Company  1994.  - vii, 641pages  23cm. <br/><br/> Includes glossary and index <br/><br/><label>ISBN: </label>0395674042 <br/><br/><label>LC Class. No.: </label> / 302.23 D361 1994