The aphides affecting the apple.
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| Main Author: | |
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| Corporate Author: | |
| Format: | Book |
| Language: | English |
| Published: |
[Washington,
Gov't. Print. Off.]
1907.
|
| Series: | U.S. Dept. of Agriculture. Bureau of Entomology. Circular
81 |
| Subjects: | |
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| Physical Description: | 10 p. illus. 23 cm. |
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