An introduction to the economics of air transportation /
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| Format: | Book |
| Language: | English |
| Published: |
New York :
The Macmillan company,
1924.
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| Subjects: |
| Physical Description: | ix pages, 2 ., 154 pages : frontispiece, IX plate, maps. ; 20 cm. |
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| Bibliography: | Bibliography: pages 133-135. |