Instructional media and technology :  a professional's resource / 
edited by Phillip J. Sleeman, D.M. Rockwell. 
 - Stroudsburg, Pa. :  Dowden, Hutchinson & Ross,  1976. 
 - Community development series ;  16. .
<br/><br/><label>ISBN: </label>0470797509 
<br/><br/><label>LCCN: </label>75-28118 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology.