The brown spot needle blight of pine seedlings / by Paul V. Siggers.
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| Main Author: | |
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Dept. of Agriculture,
1944.
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| Series: | Technical bulletin (United States. Department of Agriculture) ;
no. 870. |
| Subjects: |