Wittich, Walter Arno,  1910-. <br/><br/>
Instructional technology; its nature and use / 
[by] Walter A. Wittich [and] Charles F. Schuller. 
 - 5th ed. 
 - New York :  Harper & Row,  [1973] 
 - xxvi, 737 p. :  illus. ;  24 cm. 
 - Exploration series in education .
<br/><br/> First-4th ed. published under title: Audiovisual materials. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0060471727 
<br/><br/><label>LCCN: </label>72080129 //r76 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology.
<br/><br/><label>LC Class. No.: </label>LB1028.3  LB1043  / .W57 1973  / .W58 
<br/><br/><label>Dewey Class. No.: </label>371.33