Lugo-López, Miguel A., y José. «CONFLICT IN LAND-USE IN THE PURISCAL AREA OF THE RIO PARRITA WATERSHED IN SOUTHWESTERN COSTA RICA». Journal of Agriculture of the University of Puerto Rico 69, no. 3 (julio 1, 1985): 451–453. Accedido julio 17, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/7377.