APA

Wittich Walter Arno, Schuller Charles Francis, . (1953). Audio - visual materials : Their nature and use. New York, USA: Harper and Brothers Publisher.

Chicago

Wittich Walter Arno, Schuller Charles Francis, . 1953. Audio - visual materials : Their nature and use. New York, USA: Harper and Brothers Publisher.

Harvard

Wittich Walter Arno, Schuller Charles Francis, . (1953). Audio - visual materials : Their nature and use. New York, USA: Harper and Brothers Publisher.

MLA

Wittich Walter Arno, Schuller Charles Francis, . Audio - visual materials : Their nature and use. New York, USA: Harper and Brothers Publisher. 1953.