TY  - BOOK
AU  - Unwin, Derick.
AU  - McAleese, Ray.
CN  - LB1042.5
CN  - LB1042.5
CY  - New York :
DA  - 1988.
ET  - 2nd ed.
ID  - 132482
KW  - Audio-visual education
KW  - Audio-visual materials
KW  - Educational technology
PB  - Greenwood Press,
PP  - New York :
PY  - 1988.
SN  - 0313239967 (lib. bdg. : alk. paper)
T1  - The Encyclopaedia of educational media communications and technology /
TI  - The Encyclopaedia of educational media communications and technology /
ER  -