Ultrastructural studies on graptofites /
| Main Authors: | , |
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| Format: | Book |
| Language: | English |
| Published: |
Washington :
Smithsonian Institution Press,
1974.
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| Subjects: |
| Item Description: | En: Smithsonian contributions to paleobiology. No. 1- Washington : Smithsonian Institution Press 1969- , no. 20, 22. |
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| Physical Description: | 2 volúmenes : ilustraciones ; 26 cm. |