APA Edition Citation

Walter Arno Wittich. (1968). Audio Visual Materials Their Nature and Use.

Chicago Edition Citation

Walter Arno Wittich. Audio Visual Materials Their Nature and Use. Harper & Row, New York, 1968.

MLA Edition Citation

Walter Arno Wittich. Audio Visual Materials Their Nature and Use. 1968.

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