Não informado. (2000). Technical publication of the New York State College of Forestry. New York State College of Forestry.
Citação do estilo Chicago (17ª ed.)Não informado. Technical Publication of the New York State College of Forestry. Syracuse, NY: New York State College of Forestry, 2000.
Citação MLA (8ª ed.)Não informado. Technical Publication of the New York State College of Forestry. New York State College of Forestry, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.