Leggat, Robert <br/><br/>
Lights please: using projectors in the classroom 

 - London:  National Committee for Audio-Visual Aids,  1972. 
 - 118p. 
<br/><br/> PB 
<br/><br/><br/>Eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Projectors <br/>Teaching -Aids devices 
<br/><br/><label>Dewey Class. No.: </label>371.335  / LEL