Klasek, Charles B. <br/><br/>
Instructional media in the modern school / 
by Charles B.Klasek. 
 - Lincoln, Neb. :  Professional Educators,  1972. 
 - The professional education series. .
<br/><br/>Includes bibliographical references (p. 97-102) 
<br/><br/><label>ISBN: </label>0882240218 
<br/><br/><label>LCCN: </label>72-86023 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teachings--Aids and devices.