TY  - BOOK
AU  - Wallington, C.J. 
AU  - Bernotavic, F.D. Hale, P.;Silber, K. Hyer, A.L.
TI  - Jobs in instructional media
PY  - 1970///
CY  - Washington, D.C.
PB  - Association for Educational Communications & Technology
KW  - Instructional materials personnel--Job descriptions Job evaluation--Instructional materials personnel
ER  -