APA Citation

Wittich, W. A. 1., & Schuller, C. F. (1957). Audio-visual materials: Their nature and use (2. edition --.). New York, New York: Harper.

Chicago Style Citation

Wittich, Walter Arno 1910-, and Charles Francis Schuller. Audio-visual Materials: Their Nature and Use. 2. edition --. New York, New York: Harper, 1957.

MLA Citation

Wittich, Walter Arno 1910-, and Charles Francis Schuller. Audio-visual Materials: Their Nature and Use. 2. edition --. New York, New York: Harper, 1957.

Warning: These citations may not always be 100% accurate.