APA Citation

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

Chicago Style Citation

Wittich, Walter A., and Charles F. Schuller. Audio-visual Materials: Their Nature and Use. Third edition. New York: Harper, 1957.

MLA Citation

Wittich, Walter A., and Charles F. Schuller. Audio-visual Materials: Their Nature and Use. Third edition. New York: Harper, 1957.

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