On the determination and maintenance of the mean density of insect populations = Über Festlegung und Einhaltung der mittleren Dichte von Insektenpopulationen /
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| Main Author: | |
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| Format: | Book |
| Language: | English German |
| Published: |
Ottawa :
Canada, Dept. of Forestry and Rural Development,
1968.
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| Series: | Translation (Ottawa, Ont.) ;
no. 173. ODF TR ; 173. |
| Subjects: |