Vallejos Barra, O. (1996). Productivity and relationships of the index of site with fisiographics, edafoclimatic and foliar variable for Tectona grandis L.F., Bombacopsis quinatum (Jacq.) Dugand and Gmelina arborea Roxb. in Costa Rica.
Čikaški stil citiranjaVallejos Barra, O.S. Productivity and Relationships of the Index of Site With Fisiographics, Edafoclimatic and Foliar Variable for Tectona Grandis L.F., Bombacopsis Quinatum (Jacq.) Dugand and Gmelina Arborea Roxb. in Costa Rica. 1996.
MLA način citiranjaVallejos Barra, O.S. Productivity and Relationships of the Index of Site With Fisiographics, Edafoclimatic and Foliar Variable for Tectona Grandis L.F., Bombacopsis Quinatum (Jacq.) Dugand and Gmelina Arborea Roxb. in Costa Rica. 1996.
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