Gerlach, Vernon S. and Ely, Donald P. and Melnick, Rob <br/><br/>
Teaching and media  : a systematic approach 

 - 2nd ed. 
 - New Jersey  ; Prentice Hall  , 1980 
 - x,418p. 
<br/><br/><label>ISBN: </label>0138913587   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Teaching
<br/><br/><label>Dewey Class. No.: </label>371.102  / GER