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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Cambridge, Great Britain :
University Press,
1939.
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| Edition: | [repr., with corr.] |
| Subjects: |
| Item Description: | Originally published 1936. |
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| Physical Description: | ix, 178 p. : ill. ; 20 cm. |