Annual Member
Wittich, Walter Arno, 1910-'s books list
| No. | Title | Publish Year |
|---|---|---|
| 1. | Audiovisual materials : their nature and use | 1962 |
| 2. | Audio-visual materials : their nature and use | 1957 |
| 3. | Audiovisual materials : their nature and use | 1967 |