Progress in communication sciences / 
edited by Brenda Dervin, Melvin J. Voigt 
 - Norwood, N.J. :  Ablex Publishing,  1979 
 - v. ;   23 cm. 
<br/><br/><label>ISBN: </label>0893910104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication