Não informado. (2003). Contributions from the New York Botanical Garden. New Era Printing Company.
Chicago-viite (17. p.)Não informado. Contributions from the New York Botanical Garden. Lancaster, Pa: New Era Printing Company, 2003.
MLA-viite (8. p.)Não informado. Contributions from the New York Botanical Garden. New Era Printing Company, 2003.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.