Wittich, Walter A <br/><br/>
Instructional technology  its nature and use 

 - 5th ed 
 - New York  Harper & Row  1973 
 - xxci,737p.  Illustration 
<br/><br/><label>ISBN: </label>060471727 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>370.72  / WIT