TY  - SER
TI  - Educational media yearbook
SN  - 0000-037X
PY  - 1973///
CY  - New York
PB  - R.R. Bowker
KW  - Educational technology
KW  - Instructional materials centers
KW  - Instructional materials personnel
N1  - UKM: 1975-1977
ER  -