Zavala-Hurtado, J A, P L Valverde, A Díaz-Solís, F Vite, and E Portilla. “Vegetation-Environment Relationships Based on a Life-Forms c1assification in a Semiarid Region of Tropical Mexico”. Revista de Biología Tropical 44, no. 2A (August 1, 1996): 581–590. Accessed June 2, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/21648.