Agricultural origins: Center and noncenters/
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| Format: | Thesis Book |
| Language: | Spanish |
| Series: | Colección John Paddock
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| Subjects: |
| Item Description: | En: Science, Vol. 174, 29 october, 1971 |
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| Physical Description: | 7 folios 21.5 x 27.7 cm |
| Access: | Abierto a investigadores con solicitud previa |