Não informado. (2022). US Forest Service Research Paper SO. Southern Forest Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. US Forest Service Research Paper SO. New Orleans, La: Southern Forest Experiment Station, 2022.
Lua MLA (8ú heag.)Não informado. US Forest Service Research Paper SO. Southern Forest Experiment Station, 2022.
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