Não informado. (2000). Technical publication of the New York State College of Forestry. New York State College of Forestry.
Chicago-referens (17:e uppl.)Não informado. Technical Publication of the New York State College of Forestry. Syracuse, NY: New York State College of Forestry, 2000.
MLA-referens (8:e uppl.)Não informado. Technical Publication of the New York State College of Forestry. New York State College of Forestry, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.