Sands, Lester B <br/><br/>
Audio-visual procedures in teaching / 
by Lester B Sands 
 - New York :  Ronald Press,  1956. 
 - 670p. :  illus. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education.
<br/><br/><label>Dewey Class. No.: </label>371.33  / SAN.A