A manual of assessment keys for plant diseases /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
St Paul, Minnesota :
Canada Department of Agriculture ; American Phytopathological Society,
c1971.
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| Subjects: |
| Item Description: | Includes indexes |
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| Physical Description: | unpaged : ill. ; 18 cm. |
| ISBN: | 0890540810 |