U.S.D.A. Forest Service research note ITF.

Mode of access: Internet.

Forest Service research paper ITF.

Mode of access: Internet.

People and the tropical forest : a research project from the United States Man and the Biosphere Program /

Mode of access: Internet.

Green mansions; a romance of the tropical forest,

Mode of access: Internet.

Evolution of tropical forestry : Puerto Rico and beyond : an interview with Frank H. Wadsworth /

"FS-610."