APA (7th ed.) Citation

Wittich, W. A. (1953). Audio-visual materials: Their nature and use. Harper and Brothers.

Chicago Style (17th ed.) Citation

Wittich, Walter Arno. Audio-visual Materials: Their Nature and Use. Harper and Brothers, 1953.

MLA (9th ed.) Citation

Wittich, Walter Arno. Audio-visual Materials: Their Nature and Use. Harper and Brothers, 1953.

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