Haas, Kenneth B.. <br/><br/>
Preparation and Use of Audio-Visual Aids /  Textual Documents 
Kenneth B.Haas & Harry Q.Packer. 
 - 3rd ed. / 
 - New Delhi :  Prentice-Hall of India(Pvt Ltd) ,  1964. 
 - xii,381p. :  ill. ;  23cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Education Audio-Visual Aids G-Education 
<br/><br/><label>Dewey Class. No.: </label>371.335  / H 275 P