Wittich, Walter Arno.
Audio-visual materials : Their nature and use / Walter Arno Wittich and Charles Francis Schuller. - New york : Harper & brothers, c 1953. - xx, 564 P. : ill. ; 25 cm. - Exploration series in education. .
Includes index.
11 11
Instructional Materials.
371.33 / W785a
Audio-visual materials : Their nature and use / Walter Arno Wittich and Charles Francis Schuller. - New york : Harper & brothers, c 1953. - xx, 564 P. : ill. ; 25 cm. - Exploration series in education. .
Includes index.
11 11
Instructional Materials.
371.33 / W785a