Não informado. (2000). Technical publication of the New York State College of Forestry. New York State College of Forestry.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Technical Publication of the New York State College of Forestry. Syracuse, NY: New York State College of Forestry, 2000.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Technical Publication of the New York State College of Forestry. New York State College of Forestry, 2000.
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