Forests of Porto Rico; past, present, and future and their physical and economic environment
Murphy, L.S.
Forests of Porto Rico; past, present, and future and their physical and economic environment - Washington 1916 - 1-99 p. - Forests, Environment, Economic United States Department of Agriculture. Bulletin No. 354 .
Forests of Porto Rico; past, present, and future and their physical and economic environment - Washington 1916 - 1-99 p. - Forests, Environment, Economic United States Department of Agriculture. Bulletin No. 354 .