AUDIO VISUAL INSTRUCTIONAL APPARATUS
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| creator | DON A. NORMAN WILLIAM G. MATHENY LOWELL W. WILKERSON |
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| language | eng |
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| subjects | ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES PHYSICS PLANETARIA SEALS |
| title | AUDIO VISUAL INSTRUCTIONAL APPARATUS |
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