Gerlach, Vernon S., 1922- <br/><br/>
Teaching and media:   A Systematic approach 

 - New Jersy  Prentice-hall, inc  1971 
 - 392p  23cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education<br/>Instructional materials<br/>Teaching Materials<br/>Teaching Aids and devices
<br/><br/><label>LC Class. No.: </label>71138476 
<br/><br/><label>Dewey Class. No.: </label>371.3078 G371t