Cone production by upper-slope conifers
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| Description | Portland, Or. :Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture,1968. | U.S. Department of Agriculture, National Agri |
| Author/s |
author: Jerry F. Franklin |
| Publication date | 1968 |
| Language | English |
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| Missing/wrong data? | Edit Wikidata item |