TY  - BOOK
AU  - Coppen, Helen 
TI  - Survey of BritIsh Research in Audio-Visual Aids 1945-1971
U1  - 371.33 C785s 
PY  - 1972///
CY  - London
PB  - National Committee for Audio-Visual Aids in education
KW  - Abstracts
KW  - Great Britain -- Bibliography
KW  - Bibliographies
KW  - Audio-visual education -- Great Britain
KW  - Audio-visual education
ER  -