Wilkinson, Cecil E. <br/><br/>
Educational media and you / 
by Cecil E. Wilkinson 
 - Toronto :  GLC Educational Materials and Services Limited,  1971 
 - 194 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>0888740018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching--Aids and devices