TY  - BOOK
ED  - International Council for Educational Media
TI  - Comparative study on the administration of audio-visual services in advanced and developing countries. : : a report under contract with UNESCO, United Nations Educational, Scientific and Cultural organization 
U1  - 371.33 23
PY  - 1980///
CY  - United state
PB  - UNESCO, 
KW  - Educational media
N1  - Part 3 : (The audio visual services in Canada and the United States by Anna L. Hyer) --
ER  -