Roberts, Donald F, ed. Schramm, Wilbur, ed. <br/><br/>
Process and effects of mass communication 

 - Chicago  University of Illinois press  1971 
 - ix, 997p.; 22cm. 
<br/><br/><label>ISBN: </label>252001974 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication<br/>Human communication<br/>Mass media