Cone crop fluctuations in Scots pine and Norway spruce : an investigation based on the cone counts carried out by the National Forest Survey in the years 1954-1962 and on the reports submitted by Forest Service rangers on the cone setting in the years 1909-1961 = Om kottsättnigens fluktuationer hos tall och gran / by Stig Hagner
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| Superior document: | Studia forestalia Suecica 33 |
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| VerfasserIn: | |
| Place / Publishing House: | Stockholm : Skogshögskolan, 1965 |
| Year of Publication: | 1965 |
| Language: | English |
| Series: | Studia forestalia Suecica
33 |
| Physical Description: | 21 S.; graph. Darst., Kt. |
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