Spencer, Ken <br/><br/>
The Psychology of Educational Technology and Instructional Media 

 - London:  Routledge,  1988. 
 - 198p.;  21cm 
<br/><br/><label>ISBN: </label>0415005671 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English Language
<br/><br/><label>Dewey Class. No.: </label>407.35  / SPE