Klepzig,, H. J. Practical guide for the selection of audio visual media / H. J. Klepzig, M. Weiss

Practical guide for the selection of audio visual media / H. J. Klepzig, M. Weiss . - Paris : Unesco, 1979 . - 49 p. : il. 30 cm . - (Division of structures, content, methods and techniques of education))
371.68