Depreciation : history and concepts in the Bell system.
| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
[New York] :
American Telephone and Telegraph Company,
[1957]
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| Subjects: |
| Physical Description: | xi, 154 pages : illustrations ; 24 cm |
|---|---|
| Bibliography: | Includes bibliographical references. |