Cummins, John. <br/><br/>
Teaching and learning aids:  a handbook for tutors and lecturers on the preparation and use of visual aids / 
John Cummins. 
 - London:  National Institute of Adult Education (England and Wales),  1972. 
 - 48 p. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visual aids.