Report of the eighteenth session, Great Britain, 1948.
| Corporate Author: | |
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| Format: | Conference Proceeding Book |
| Language: | English |
| Published: |
London,
[publisher not identified] ;
1950.
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| Subjects: |
| Physical Description: | 3 volumes : illustrations, plates. maps. ; 25 cm. |
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| Bibliography: | Includes "References." |