Kieffer, R.E. de <br/><br/>
Manual of audio-visual techniques 
R.E. de Kieffer, Lee W. Cochran 
 - 2nd 
 - Englewood Cliffs, N.J.  Prentice-Hall, inc.  c1955, 1962 
 - viii, 254p.:  ill. ;  28cm 
<br/><br/> Bibliography and audio-visual materiale at the end of chapters 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiovisual education
<br/><br/><label>Dewey Class. No.: </label>371.33/K47m