TY  - BOOK
AU  - Mangal, S. K. and Mangal, Uma
TI  - Audio Visual Education
CY  - New Delhi
PB  - Arya Book Depot
N1  - Contents 
1. Audio-Visual Education  - Meaning  Needs and Importance 
2. Audio-Visual Aids  - Meaning and Types 
3.Graphic Aids 
4. Display Boards 
5. Three Dimensional  Aids 
6. Audio-Visual Equipments 
7. Preparation of Audio-Visual Aid Material 
8. Audio-Visual Library 
9. Audio-Visual Museum 
10. Audio-Visual Exhibition
ER  -