El estado actual de la investigación científica en ciencias naturales en México /
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| OCLC: | 24172708 |
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| Main Author: | |
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| Language: | Spanish |
| Published: |
1962.
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| Format: | Thesis Monograph Note that CRL will digitize material from the collection when copyright allows. |
| Physical Description: | 163 l. 20 cm. |
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| Bibliography: | Includes bibliographical references. |