Árboles maderables de la península de Osa

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En este libro se describen todas las especies de mamíferos nativos del país y se proporcionan mapas de su distribución en el territorio, con lo cual se contribuye a la divulgación del conocimiento sobre los mamíferos de México y al desarrollo de la mastozoología.

La civilización industrial nos trajo la contaminación, pero no es posible volver al artesanado. ¿Cómo salir de esta trampa? Caselli expone primero el origen del problema, luego las consecuencias y, por último, las medidas para resolverlo. Y propone, con considerable aparato técnico, tres únicas soluciones: ahorro de energéticos, energías alternativas y rigor en las leyes contra la contaminación. La contaminación

The business weave of the sector cerámico of Castellón is not alien to the environmental questions and their experience could be extrapolable to other economic sectors that they have the need to express their environmental actions in politics and estratégias and in the establishment of a compatibility of environmental management as so much external as internal system of information