The pear psylla in California /
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| Main Author: | |
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| Format: | Texto biblioteca |
| Language: | d |
| Published: |
Berkeley, Calif. : Division of Agricultural Sciences, University of California,
1962
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| Subjects: | PSYLLA, PEAR-DISEASES AND PESTS-CALIFORNIA, Bethell, Richard S., Sisson, Roger L., |
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