TY  - BOOK
AU  - Klepzig,H.J.
AU  - Weiss,M.
TI  - Practical guide for the selection of audio visual media: general criteria system and evaluation procedure for educational media decisions 
PY  - 1979///
CY  - Content, Methods and Techniques of Education (ED/SCM), Paris
PB  - Division of Structures
KW  - Audio
KW  - visual education
KW  - Visual education
ER  -