Projecting sound pictures ; a practical textbook for projectionists and managers /
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| Format: | Book |
| Language: | English |
| Published: |
New York, London :
McGraw-Hill book company, inc.,
1931.
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| Edition: | 1st ed. |
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| Physical Description: | xii, 265 pages including frontispiece, illustrations, diagrams ; 24 cm. |
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