(页面存档备份,存于互联网档案馆) Hagedorn, Dan. NorthAmericanNA-16/AT-6/SNJ. Specialty Press. 1997. ISBN 0-933424-76-0. Starkings, Peter. From American Acorn to Japanese Oak
Forests of Home: Profile Of A NorthAmerican Bioregion. Island Press. 1997 [2013-02-13]. ISBN 1-55963-480-4. (原始内容存档于2013-06-16). 引文使用过时参数coauthors (帮助)