APA (7th ed.) Citation
Wittich, W. A., & Schuller, C. F. (1968). Audiovisual Materials: Their nature and use. Harper and Row.
Chicago Style (17th ed.) Citation
Wittich, Walter Arno, and Charles Francis Schuller. Audiovisual Materials: Their Nature and Use. New York: Harper and Row, 1968.
MLA (9th ed.) Citation
Wittich, Walter Arno, and Charles Francis Schuller. Audiovisual Materials: Their Nature and Use. Harper and Row, 1968.
Warning: These citations may not always be 100% accurate.