Não informado. (2022). US Forest Service Research Paper SO. Southern Forest Experiment Station.
Chicago-referens (17:e uppl.)Não informado. US Forest Service Research Paper SO. New Orleans, La: Southern Forest Experiment Station, 2022.
MLA-referens (8:e uppl.)Não informado. US Forest Service Research Paper SO. Southern Forest Experiment Station, 2022.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.