Hancock, Alan <br/><br/>
Planning for educational mass media 
Alan Hancock 
 - London; N.Y.  Longman  c1977 
 - viii, 383p.:  tables, figs. ;  22cm 
<br/><br/> Bibliography and index at the end 
<br/><br/><label>ISBN: </label>058241055X 9780582410558 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education<br/>Mass media
<br/><br/><label>Dewey Class. No.: </label>371.33/H234p