Audio-visual guide to better projection.
| Other author | Cypher, Irene F. |
| Other author | Radiant Manufacturing Corp. |
| Format | Book |
| Publication Info | Morton Grove, Ill. : Radiant Manufacturing Corp., [between 1961 and 1986] |
| Description | 36 pages : illustrations ; 28 cm |
| Subjects |
| General note | Foreword signed: Irene F. Cypher. |
| Other title | Audio visual guide to better projection. |