Audio-visual materials :their nature and use /Walter Arno Wittich, Charles Francis Schuller.
Wittich, Walter Arno.
Audio-visual materials :their nature and use /Walter Arno Wittich, Charles Francis Schuller. - New York Harper & Brothers, Publishers 1953
Christian education
Audio-visual Teaching aids
268.635 / Wit
Audio-visual materials :their nature and use /Walter Arno Wittich, Charles Francis Schuller. - New York Harper & Brothers, Publishers 1953
Christian education
Audio-visual Teaching aids
268.635 / Wit